vertigo - i have it too. to help/get rid of it lay on flat surface and sit half way up then back down turn ur head slowly to each side then do again bout 5 times. then again sit up but all the way do the same thing. helps massively. vertigo.is caused by a miss balance in ur ears by doing this.it corrects the miss balance. If it doesnt help or gets worse see ur gp.
check out "postural orthostatic tachycardia syndrome" . there's only a tiny chance you have it but please make sure. I have it, but I was incredibly sick for a year and a half before I was properly diagnosed. do it for me :3