I'm a 6 year cancer survivor from Stage IIIC colon cancer and FAP. I have an IRA like you. Sounds like you are about 4 weeks out from surgery which is not a lot of time. The digestive tract is such a fragile system that gets upset from the surgery. My experience is things continued to improve for a few years. For me, early on, things were all liquid and I had similar sensations where something needed to come out but nothing was there. I think its just inflamed or something from the acidic nature of the output. Here's some things I'd recommend right away.
- Buy metamucil wafers and start eating 1-2 wafers with each meal
- start taking immodium 2 pills in the morning, 2 at night to slow things down.
- go online and buy some calmoseptine lotion to put down there to protect the skin. Its a barrier so you use it before problems start and it helps a lot for the pain.
- go to this website and learn about the differences between soluble and insoluble fiber. Soluble fiber is what you want now. Soluble fiber absorbs liquid and you have too much liquid output. Your colon used to take the water out and the small intestine will pick up these duties eventually but that takes time. Here's the website... http://www.helpforibs.com/supplements/sol_fiber1.asp
Other recommendations I've heard is to eat the wafer but don't drink lots of liquids with a meal. Wait at least a 1/2 hour. I don't really follow this one but it makes sense.
With time you can get off the Imodium, you won't need the calmoseptine. I still take the metamucil but am actually experimenting not taking it now (2 days so far) since I'm out and more is on order but won't be in for a week.
For me, the IRA has been very manageable. Hopefully my suggestions will get you moving in the right direction (or get things not moving, pun intended
). FYI, I mountain bike ride/race and I'm on the bike for 2+ hours at a time in the heat. I hydrate fine and don't ever find I need a bathroom. Eventually you will just get used to your new normal but trust me, you aren't there yet. Feel free to PM me for more info. I'm happy to help any way I can.