P,
I can't help with chemo drugs (not there yet, but will be). After some colo-rectal surgery and RT damage, I can offer avice on bowel issues.
My old stand bys are docusate calcium (not sodium, Rugby is the lowest-cost option) one 240mg daily as a stool softener, and if things just don't work, a tablespoon or two of mineral oil about 10 at night will provoke a bm about 6 am. This was prescribed by a 'Nam era Army field surgeon who came back to specialize in colo-rectal issues.
I was put on Megestrol AC 20mg twice daily for my hot flashes, but it induced cravings like you would not belive. Salt & Pepper Kettle Chips at 3am. I had to stop them. I mention this because that med really did increase my appetite, so I wonder if there is something else that is causing the lack.
As to the GFMPH weekend, come on out. A bit part of the reason we can have a good time is that we all know about each other's elephants in the room. I can round up an extra cigar and scotch glass or two.