Can Diverticulosis go away and return? I was told I had it several months ago so I made sure I did not eat the wrong foods. I still am very careful as to what I eat. When I was first told I had it, I had excruciating pain on the right side of my stomach. It's been gone for a few months, but yesterday, it returned with a vengence. So, does that mean that it can come and go whenever it wants? I thought being on a proper diet would help and it did, but it's back. Need some input. Thanks.