
So sorry for you Tired Lady. Check out my post of a few weeks back ''adrenaline surges, palpitations, general panic'' (on screen three I think of this message board).
I am EXACTLY the same as you, and I know for me it is perimenopausal. I have premature ovarian failure / early menopause (am now 45 turning 46 in August).
I totally understand what you are feeling - esp the panic in response to the racing heart. You now doubt feel the beats, get very upset about it - as anyone would - and then your body goes into full panic mode, and then of course when all is over you totally dread the next episode, because they are horrible. I really do sympathise as I have had that quite a bit in the last few months.
Although there are indeed lots of causes, one common explanation is menopausal symptoms. We tend to panic I think because every one often thinks 'night sweats and hot flushes' are the only things to expect. But the fluttery heart is indeed a nasty symptom and is the body's response to the hormone fluctuations. Funnily enough I got this a lot before Christmas, when I first posted on this forum. The episodes have not been too bad in the last 3 weeks BUT, last night I had another episode where I woke up during a nightmare, heart absolutely pounding. When that first started happening, I would go into full 100% panic mode, and get a panic attack on top of that. I would then constantly worry about another attack, absolutely all the time and it was always on my mind.
However, after a lot of thought and research, I have now tried to at least stop the panic that comes on top of the adrenaline surges. I get up, get something to fan myself with, open the curtains, turn on the light if it helps, pace around a little bit and just concentrate on fanning myself. The action of the fan is I admit a bit silly, but it helps as a distraction technique. I say 'this is going to stop soon' - I try NOT to say 'oh my goodness, what is this, it should not be happening, I am really really ill, I am going to die etc etc' and I try not to let my thoughts race. This is hard to do I admit, but if you can stop the extra panic on top of the heart pounding, it does go away sooner.
It is indeed, I believe, a result of 'vasomotor symptoms'. Everyone always thinks flushes and flashes and heat with vasomotor symptoms, but these adrenalin rushes are ALSO part of it all as well. Heat may well be felt, as will chills afterwards for some women. It's so worrying because we are cruelly awoken from slumber, and that feels extremely unpleasant when it comes out of the blue.
The trick is to try as hard as you can to just 'ride it out' and NOT add layers of pure panic on top of it if you can because that takes the fast heartbeat and merely stokes the whole thing and it's like adding petrol to a fire! I know this is hard, but it will lessen the unpleasantness if you can do that. I have started thinking of my surges as hot flashes without the heat. Last night for me this did work. I awoke from a horrible nightmare to find my heart pounding like crazy. I was able to recognise this familiar symptom, and I realised I had a choice. I could go into full blown panic mode like I often have in the past, or I could try to get up, pick up a book, toothbrush, go to the loo, comb my hair, find my slippers ... do ANYTHING to pass the minutes of time while the beats calmed down. Obviously yes I still had the attack, but the layer of blind panic did not develop and so the attack seemed very short.
I don't want to sound smug - obviously if given the choice I would not want to go through this at all. But all I say to you is, 'yes, I know what it's like and it's

!!