What anxiety med is he on? Anxiety meds can cause memory problems.

I'd also do research on the other meds he is taking. Topamax made me VERY forgetful. Gabapentin made my sister dumb as dirt.

MG doesn't usually cause horrific memory problems. I do have a slight type of dementia which I feel, but cannot prove, is related to MG. I now have trouble remembering names and recognizing faces of people that I do not REGULARLY see.

Anxiety meds can make MG worse.....other meds, too.

Each MG journey is different -- this is why it is called the "snowflake" disorder. Some MGers improve, some worsen, some stay stable for years. Symptoms also vary widely from person to person.