I also lost half my blood ... last summer. The few days before I bled I had been taking Aleve. This was pre-Vicodin days and Tylenol was not working. I wasn't aware that the effect could be so drastic. I asked my doctor if the Aleve might have contributed (they don't really know why I bled that much). His response was yes. Now I avoid all those pain killers. I use Tylenol when I can and switch to Vicodin when that doesn't cut it.
--39 year old female, dx as UC in '04 (1st symptoms in '03), switched to Crohn's in '05
--1 fistula, crohn's colitis, limited to large intestine
--rejected (reaction/didn't work): Asacol, AZA, 6-MP, MTX, Remicade, Humira, prednisone
--stuck on methylprednisolone
--tried Prochymal in Phase III study (can't wait til it's approved!)
--waiting to start Tysabri
--single mom to 10-year-old girl