Hiya Shell
It could be eptopic beats.
Basically, when your heart misses a beat the natural rhythm of the heart makes up for it by adding a beat, it kinda feels like your hearts stops then a thud (the feeling is a bit like stopping suddenly in a lift) then back to the natural rhythm. Or, it can feel like a flutter in the middle of the chest, I get both alot.
Good news is, eptopic beats are for the most part harmless, and are just a by-product of your heart making up for a missed beat. They are extremely common, and the fittest of people get them, even athletes.
I have suffered on and off with health anxiety (and GAD) for a few years, and have had these palps/beats often.
I would always recommend though, that anyone worried about a health issue pop and see a GP, just for reassurance.
But in your case, it sounds just like anxiety.
Some people get these palps from too much alcohol, coffee etc and when tired, so its worth seeing if there is a link to the beats and anything you ate (or drank
)
Sometimes we only need reassurance to lessen the anxiety, which in turn lessons the symptons like palps, band of pressure around the head etc.
My 1st post, and I can't see a spel kecker so apologies for any typos.
Take Care
Jaco45er