Debra,
I don't have hearing loss, but I definitely have a change in my hearing since I got MG. It seems that if two people talk at once, or there are two competing sounds, I have a hard time listening...before MG I could focus and one voice and hear it all and still be able to understand most of the second voice or sound. Now, most of the time, the voices mix together and I can't understand what is said. At the same time, my ears are more sensitive to loud sounds, I cover my ears a lot if there is a loud sound because it makes me uncomfortable. Both of these things get worse when my MG is bad.

I do remember reading about hearing loss as a symptom of another autoimmune disorder, but I can't remember what it was just now.

I hope you get this figured out soon.