I don't have an answer, I only had my ostomy for 8 weeks, but I really want to encourage you to see a GI and get an evaluation of your stoma. Sixteen years is a long time to go without an evaluation! After that you should meet with an ET nurse. Ileostomy products have changed a lot since you had your surgery and I am sure you would find the newer products, tips, and overall support from an ET nurse to be invaluble. As for the odor, there are drops that are made for ileostomy bags that all but eliminate the odor. You can either find them from your local drugstore that sells ostomy supplies or purchase them online.
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