strange palpitations in abdomen

[Gilesy]

Hi folks.
I'm new to this, I've found it because I've been looking for information on celiac desease, which the doctor thinks I may have. I have also been an IBS and stress sufferer for the past 10 years.

I'm experiencing something new though, in the left of my abdomen, about level with the waist line, I get peculiar palpatations as if somethings 'boiling' there. It's very uncomfortable and disconcerting.I've had this for about 3 days now and at times it can be quite painful. Has anybody got any ideas what this could be? I would be extremely grateful for any help.
Thank you
Gilesy