Another thing I notice is that acidity apparently causes a lot of the same symptoms that would cause me to panic; chest and throat tightness, "heart" or chest flutter, nausea. Not knowing the cause, I let it escalate to the point that I can barely function.

I was wondering because I'd get these feelings even when I'm relaxed, lounging around or in bed. I always used to notice these symptoms when I'm stressed or in a particularly tense situation.

So I read up on the symptoms and hyperacidity came up - which I have but it only used to get triggered after drinking or eating spicy/oily stuff. Now, stress is also triggering it.

I've since stocked up on antacids. And so far so good.

So for those in the same boat, check if it's acidity. Note the times you feel those symptoms, if it happens after meals, or bouts of drinking, it could be acidity.