I have frequently had abdominal pain on the right side ever since I had my gallbladder removed nearly 10 years ago and I frequently vomit a small amount and it usually leaves a soapy taste in my mouth.  For the past few weeks the pain has been getting worse but the soapy taste seems to happen a little less frequently.  I almost always get canker sores and a few days ago I somehow got a blood blister on the underside of my tongue (no I didn't somehow manage to bite it there and it eventually turned into a huge canker sore at least a centimetre in diameter.  I have also been having teeth and general mouth pain for about a month, but that could just be TN from my MS.  What would be causing all of this?  The abdominal pain at times gets very bad and I'm really sick of nothing wanting to stay down....my doc just says it's 'just' the MS, but I'm tired of just being put off with that - I swear sometimes I think I could go into the emergency room with a broken leg and be told it's my MS and I have to call my neurologist!