Thank you, @becsbuddy, for the link to MG United! It looks like there might be some useful information there. I signed up and will go back to check out more of the information soon.
You asked what concerns me about Imuran. I may be overreacting, but the potential side effects sound a lot like that of the chemotherapy my father was on for treatment of his cancer years ago. I wonder if I would just be trading one set of problems for another and not improving my quality of life? Imuran also increases risk of skin cancer and lymphoma. My grandmother had lymphoma and I worry that I might be at increased risk already. I wonder if this medication could be the trigger to set it off if there is already a vulnerability there.