Flushes, stomach and adrenaline.

Hi, me again. So the last month or so has seen a change in my symptoms. Had been having night sweats about a year ago then they changed to only happening every now and again. Over the last 5 weeks I've had 2 weird times in the night. 1st time I woke up suddenly with the urge to go to the toilet and was sweating. Made it to the toilet where my bowels were looser. Had weird feeling in head, stomach and the most intense shakes and shivers. Felt like an adrenaline surge. I had not got a temperature even though I was shivering and sweating. After about 15 mins of shakes, shivers and the adrenaline surge I stopped sweating and felt brighter again. Tonight, I woke up sweating and far too warm, laid uncovered for a bit but then the weird adrenaline surge started again. Too hot, sick and shaky. Went to the loo, stomach felt weird. This lasted less time than the last one. Still feel nauseated. Have taken anti sickness meds and am now wide awake feeling rubbish. Does anyone else get anything like this? I'm on the pill microgygnon, last month when it happened it was just at the end of what should have been ovulation. I've started my pill back to back this week, but if cycles had fallen as normal I'd have had a period start yesterday.. Seems like new symptoms crop up monthly.