First it started with stomach pains, and than slowly i started getting really bad headaches, and maybe 4 days later my energy level started to decrease, i constantly check my weight and its always been stable but than with in 3 days i gained 10 lbs and i dont have pms, my eating habits are regular but it seems if i work for even a half and hour i get dizzy get migrains and my limbs feel like their going to fall off, and just a couple of days ago there was a bit of nose bleed [not alot] does anyone know what these symptoms are from ?