... diverticulitus? I've Been having small thin stools and last night I had aweful bloating in my upper tummy area. I'm on antiobiotics and bentyl since yesterday. I'm not sure what's causing the bloating And small stools. I was diognosed a month ago. So I'm new to all of this. Now I'm on a fiber free soft food diet. Ugh! Any and all answers would be greatly appreciated.