Nausea and sometimes vomitting within an hour of taking it unless...

Nausea and sometimes vomitting within an hour of taking it unless I've eaten a full meal first and follow it up right away with a light snack. Chest pain particularly on the left, side though that has lessened a bit--doctor ran some tests and xrays and stuff and said that was fine. Skin feels burned even though I haven't been outside in days, and lips are cracked despite wearing lip balm. Also have vaginal itching, lower back pain, and sharp pain when having a bowel movement.