 [ Symptoms ] how does someone with ulcerative colitis gain weight  i have ulcerative colitis which makes me have to use the restroom numerous times a day i already eat as much as i possibly can but everything i eat goes right through me this makes it nearly impossible to gain weight i want to gain back all of the weight that i have lost due to my condition what can i do besides eat more [ Disease ] be vigilant if you are in a hotel check the bed before you go to sleep and when you return home wash everything in hot water bedbugs can not survive temperatures above 113 degrees fahrenheit as for hospitals you are right they are not necessarily bedbug free zones the national pest management association says 12 of its pros treated hospitals for bedbugs last year