Period after cessation.

So I've been in peri for 4 years. My periods were pretty much regular until last October, when they stopped. I had all 66 symptoms during peri, after the periods stoped there were less symptoms around the period time-namely anxiety and insomnia. I was happy. But suddenly the period reappeared this week, extremely heavy bleeding, super anxiety and sleep problems. I had those unusual symptoms last night-I was woken up from sleep with sudden severe racing heart and pain in chest. And it happened 3-4 times , I could not sleep for more than 15 minutes at a time. I had awakenings with anxiety and some racing heart before-during peri, but I would sleep at least a few hours then, at least. Not last night tho. It only subsided in the very morning. I was not hot, not sweaty, nothing. My question is: when you get periods like that, which reappear after some time-were they also so difficult-anxietywise?

Take magnesium for heart palpitations.