Hi! Last night I had really strange symptoms come on me all of a sudden, I had been feeling perfectly fine all day, then when I had been lay down to sleep at first I got extremely restless all over especially in my legs to the point where I almost wasn't in control of the movement and it was quite extreme, my head began pounding (and as someone who has suffered from migraines for 18 years now it was an extreme pain like nothing I've ever felt), I was shivering as if cold but was infact extremely overheating to the point where I felt the need to go and have a bath to regulate my temperature (I also hoped this might relax my muscles which had extremely tensed I think through my restlessness), I got out of the bath and lay on top of my bed with no clothes on soaking wet and fell asleep in what would have been a freezing cold room (but I did not feel due to my extreme temperature). I felt very weak and almost out of it. This has happened to me once before and I seem to wake up in the morning absolutely fine. Do you have any idea what theses ‘episodes’ may be?