help? opinions? suggestions? please?

Imani

im 16 and i have no idea what the heck is going on with my period cramps. When my period starts on a weekday, i have slightly noticeable to no cramps at all. But if my period starts on the weekend, i get HORRENDOUS cramps that flat out immobilize me for that first day. I lay in bed all day not knowing if im falling asleep or blacking out. I throw up everything i ingest nearly immediately, quick enough to take aspirin and then see the remains of the pill when i throw up. I feel like im being ripped apart very slowly. Can someone please tell me if this is or isnt normal. Does this happen to anyone else? Im so sick of feeling alone in this misery. This must be happening to someone else on here.