Hmmm, any chance you might have sleep disordered breathing? Shot in the dark, but a few years ago I was having frequent palpitations (early 30s) and it turned out to be a mix of high stress levels and poor sleep quality. BJJ to clear the stress and a nose rebuild to keep me breathing at night and it's all cleared up for me.

Sleep apnea is something that can come from a variety of things, only some of which are fat old men issues. They say if you have a deviated septum your nose works only in one nostril and not the other. Not so! I had both a deviated septum and a bone spur, so I was unaware that both nostrils were equally bad. Doc cleaned that up along with some other structural issues and I got a squeaky clean followup sleep study. Afib and cardiac hypertrophy are both linked to apnea, and I would imagine that being in good shape isn't a barrier to the issues that arise when you don't get fresh air into your lungs in a timely fashion.

Something to consider, might be totally off base.

I started at 40, about to turn 50 in a few days. I normally do between 20 and 25 hours of training a week. My doctors said basically, just keep doing whatever you're doing.

I don't think it's a matter of volume, but as someone already pointed out, it might be a rest issue. High volume but low rest is a recipe for a heart attack.

You can only train as much volume as you can recover from. Recovery is besides a genetic thing, also influenced by lifestyle. Sleep in particular. I'd be looking into that direction to see if you have any gains to make there.

I seriously appreciate the responses guys. Im going to a cardiologist to rule out anything terrible. Im going to bring up sleep.

Thinking back my recovery has felt like absolute ass lately. Since ive slowed down last week so has the palpitations. No nocturnal afib last week at all.

I also asked GROK about this. One of the more useful things with AI, that thing gave me so much detail on this subject it was mind blowing. Even gave me recovery tips for training/deconditioning a little, even a plan as to not do it so fast to cause harm and to retain muscle.

Taking it all to the cardiologist along with ECGs from my fitbit from after training so he can see everything. My family has a history of not making it to 60.... so lmao. Gotta rule it all out.

Most injuries occur in the training room.

This is unfortunate, and quite a vexing problem for professionals, who earn their money with purses, that they must earn in competitive contest, off of their skill, their physicality, and their mental preparations.

So, yes, we can certainly overtrain.

And it can be quite detrimental to the common goals of training.

I would add a quality 45 minute practice is often better than a two hour over-intense whatever.

And two quality 45 minute practices, with a decent break for mental processing, and physical recovery, often beat a 1.5 hour overly intense whatever, hands down.

What shall we do, when we are overly fatigued, be forced to rely solely on technique?

That is what Mestre Rickson would say.

Of course, Mestre Rickson's spinal vertebrae look like the results of a pillaged scratch and dent sale inventory, and he has Parkinson's.

So, while I remain in awe of Rickson (and Royler's for that matter) technicality, I do not wish others to emulate whatever produced his (and many grapplers) spinal vertebrae distress, or other avoidable injuries.

More likely, most people when they train to exhaustion, compensate for their exhaustion with attempts to summon more physicality, and often injure themselves, and their training partners, thereby.

Whether due to lack of a professionally trained coach, or impatience, or lack of discipline, or just, because as my German Sheperd would say if she could talk, "but Dad....chasing the deer, and the rabbits and the birds is fun...."

Even though their are gators and water moccasins in my pond, and rattlesnakes and such on my property.

And grapple to exhaustion practices, are similarly fun for grapplers.

But, that which is fun, is often not good for us, at the wrong dose, and frequency.

Much like all that separates useful medicines, from being poisons, is the right (or wrong) dose and application.

But, everything that is fun, tends to be fun, until it isn't.

And then we may find that we pay a price for a long time, sometimes the rest of our lives, in fact.

So it is up to me, as the dog owner, to worry that there are alligators in the pond, and rattlesnakes and water moccasins are on the property, in every water way, and every blade of grass.

And it is up to us, as Coaches, to help our athletes from throwing away their physicality potentials, and their health, on fruitless things, or vanities.

Because grapplers, when it comes to grappling, tend to be like dogs, ready to chase the deer, or bird, sometimes right off a cliff, as it is often not within their own natures to withdraw, retreat, or be reasonable, in their excesses, especially when their adrenaline is going, and the game is afoot.

So deconditioning has been a bitch. Stepping off the gas pedal..... my vagal responses have been a freaking mess. Sent me to the hospital one day tachycardia at 150 for absolutely no reason what so ever. Every time I move my body over responds like its trying to find a workout. Anyways, staying out of the roll for now. Focusing on the mental at this point. Been interesting these last 2 weeks. I have a prolonged QRS complex, so either a bundle branch block or an enlarged left ventricle. ( more likely the latter). But more testing to come. Ill keep this updated in case anyone else runs into this. Also SALT has become my best friend. Keeping my stuff regular and my blood pressure up.

Family history of dying young, possible enlarged left ventricle, afib... Dude, if you haven't been referred to a sleep lab yet, start screaming at your doctors. Don't settle for a home test. In lab, full monitoring.

I'll say it again: not everyone who has OSA is a fat old man who falls asleep on the couch in the middle of the day. There's way too much smoke here to brush aside. From my perspective, this should be a top priority to rule out.

I would concur with Mr. GIbbs.

You should get a rigorous cardiac health work up, with a licensed Cardiologist.

I would add, low blood pressure drops can be just as dangerous as high blood pressure.

I would also consider cutting back on any alcohol and stimulants (although not necessarily cold turkey immediately without supervision if you use either in regularity or excessively).

None of this is medical advice, other than the desire to not see you drop dead from a heart attack, or have a stroke, or faint, unexpectantly.

Sounds kinda like my spontaneous pneumothorax disease that keeps reoccurring but not for any specific reason, martial arts don't trigger it luckily or working out but I can see how frustrating it can be because I was sent to pulmonary specialist and lungs have scaring from collapse but I passed all breathing test, then sent to cardiologist specialist to see if heart issue pumping blood to lungs and didn't see anything, xrays, CT scans, mri even with contrast next is a heart monitor if happens again. Something been dealing with for over decade and just been dealing but now been more consistsnt but no answers they might just chalk it up to stress for me

Here's a bit of my own rollercoaster:

What was initially thought to be heart-related random episodes of bradycardia and tachycardia, led to years of testing. I even rolled in jiu-jitsu with a compact ECG machine Bluetooth-linked to a phone transmitter, just to catch episodes in real time.

I went through numerous echo imaging tests, stress tests, and saw top specialists up and down the East Coast. But in the end, it wasn’t a heart issue.

Eventually, sleep studies were added to the mix since the episodes could happen anytime. What they found was autonomic dysfunction, which was also linked to central sleep apnea.

During my ENT visits, they discovered a deviated septum and enlarged turbinates, likely from impact trauma. Surgery corrected the structural issues, but not the central sleep apnea. Later, I learned that other symptoms tied to autonomic dysfunction were driving the sleep disturbances and central sleep apnea.

So yeah, get the tests. Rule out structural and functional causes. Sleep studies, stress tests, whatever it takes. You might land on an answer that helps you manage or at least understand what’s going on.

Medicine’s never one-size-fits-all. Keep digging.