I have Psoriatic Arthritis. Ten years ago, I had to have 3 inches of colon removed due to endemtreoses. Constipation is very bad. I can go 4 days or longer. Last year I had gastric sleeve surgery and lost 72 pounds. For the last 5 months constipation has been HORRIBLE!!! Upper stomach bloating and pain. GI put me on 290 on Linzess. It has not made ANY difference!!! The only relief I get is from doing dulcolax about every 4 days. Any help would be wonderful!!!