Hi Lavender,
When you say your sides are hurting, do you mean up both sides of your belly? Is your bellyache in your lower or upper belly? How long have you had it?
I am afraid that I am not sure what Levbid is, but can your doc not get at what is causing you to have belly pain? Are you having normal BM's and is your pain related to that perhaps?
Sorry I can't be of more help, but maybe someone else can.
Take Care
Sarah