I am a 72 year old man who is in reasonably good health generally. Next week I am going in for elective colon resection for diverticulosis. This however, is NOT my main reason for writing.
Lately other digestive disorders have appeared. Constipation: It;s now a condition where I can't have a movement unless I drink a large glass of prune juice the night before. Even at that
it is usually a one time blast of liquid or mud consistency. Sometimes when I do have a formed bowel movement it is very narrow on the order of about 1/4 inch. I have no sense of hunger.

I eat because I know I must to live. I can't eat much because it feels my stomach fills very quickly and STAYS FULL for a long time. Many times while eating a sensation nauseousness comes
from nowhere. At other times my stomach and bowels, for no reason that I can ascertain, feel like someone has been beating them with a big stick and then it will stop. Many times I go to bed but the next day the bowels are feeling OK.
I don't know if this is germaine but I take high blood pressure meds and they all list possible constipation as a possible side effect.

I am well versed in what a diverticulitis attack feels like and what I am describing is NOT diverticulitis attack.

Tomorrow I will see the gastro surgeon for a pre-op conference and I will bring this all to his attention but I'd like to hear your opinion also.