I have late stage cancer. I have a colostomy as a result of my original diagnosis (colon cancer). I'm also diabetic and have gastric-reflux disease.
I find my gastric reflux acts up if I don't eat, so there's an argument there, but then my colostomy acts up if I DO eat. I have some hernias that don't help the situation any. On top of that, the cyclical nature of it plays havoc with my diabetes, so there's lack of energy between diabetic problem and not eating.
What I find myself is in a cycle of eating for a couple of weeks, then dropping off and not eating for a few weeks (and I'm not even hungry). Hemp helps to a certain degree but usually it's a last resort to get to eat. I'm losing pounds, but more importantly I'm losing energy. I just suspect it'll be a continuous cycle.
And just food in general - I've cooked all my life, probably would have been a restaurant chef if I wasn't so aware of the seedy side of the glamour life. But I cooked for me and my family, but since I haven't really been eating (2 years now) I haven't really been cooking a damn thing for my family for 2+ years, although we always used to have a good meal most nights.
Like you, I love a large variety of foods. I've had to give up one of my loves, spicy, because my colostomy can't take it, but more than that, I find it hard to eat. I'm simply not hungry. If I need to eat, I may force it if desperate enough, but like you it has a lot to deal with just swallowing and food settling in my stomach. Someone will ask me out to eat, and if I haven't eaten for days, I might get a fruit cup. Other days it catches up with me and I need the pure protein of a prime rib slice. Overall, though, I don't eat. I get liquid nourishment and potassium and vitamins, but not really protein. Coconut milk, carrot juice, and Bolthouse Farms "daily greens" will only get you so far.