Liz,
Don't give up ..............from what I know, ear pain in adults is less likely to be from an ear infection. What you think is ear pain may actually be coming from another location, such as your temporomandibular joint, your teeth, throat, or other location. This is called "referred" pain.
Please seek out the help of a new GI Doctor that you can start fresh with to find help for your pain. I hate to read of you being in so much pain.
Kindly,
Kitt