Do you have a j-pouch now?
I know that not eating makes things worse with a j-pouch.
Have you tried an elimination diet? The biggest culprits for gas are carbhoydrates (breads). I had severe gas after surgery and had to eliminate all wheat products for about six weeks and the difference was amazing. Do you take probiotics? You might find that adding probiotics (good bacteria) to your gut will help offset the bad bacteria and settle the gas issue. I take PB-8, Culturelle is good too.
If you have a j-pouch I suggest you visit www.j-pouch.org for more help.
dx proctitis in 1987
dx UC in 1991, was stable until 1998
1998 started prednisone, asacol, pentasa, nortriptylene, ativan, 6MP, rowasa enemas and suppositories, hydrocortisone enemas, tried the SCD diet, being a vegetarian, omega 3s, flax, pranic healing, yoga, acupuncture, probiotics
2000 lost all my B-12 stores and became anemic
2001 opted for j-pouch surgery- now living life med-free