Im having these episode, as Im drifting off to sleep I feel like my brain is still on. As if my eyes and brain are spinning! My body is tired, but my brain wants to stay up. Which in return gives me these weird sensations as im trying to doze off. Its so scary, I feel as if part of me is pulling me in to sleep, but the other part is fighting it and then I feel dizzy, My heart races, body gets a weak numb feeling likes its so tired, a little nauseated and dazed and sometimes I even get mild hotflashes(im 31). All these symptoms happen as awake. Mind you, when Im awake, these episodes never happen. Only thing that stays is the dizziness that comes and goes. Some moments I feel as if im going to fall over, I get so lighthead and dizzy. I cant stand to be around to much motion or move my head or body a certain way. And sometime car rides just make it worse. But the whole sleep thing episodes are my main concern. My blood workup was fine, Im only iron defiencient anemic. Ekg, chest xray, ct scan of head, abdominal xray....were all normal. Has anyone else experienced any of this? Please share