meds for cramps?

Hello,

I'm new on this board.  I had gastric bypass on 12/8.  I started my period today (1st cycle post op).  The cramps are ok..but since I cannot take ibuprofen, what can I take?  Taking Tylenol
will not help with cramps at all.  I usually had severe cramps.
Also....I was very moody the past few days (thought I was going crazy really) crying over anything.
I had nausea and vomitting 2 days ago. and nausea all day today. would the nausea and vomitting be a "PMS" symptom?