I have an apt with my neuro opt in a couple weeks. My doctor has been talking to him and has treated about 15 people with myasthenia gravis and seems to know how to treat it.

The additional tests they did were thumus cat scan which was negative and antibodies were negative. But I had this same thing 15 years ago and comparing notes it was misdiagnosed back then as 4th nerve paulsy. What made him say its myasthenia gravis for sure is the ice on the eye lid test. Measured my ptosis, had me put ice on my eye lid for two minutes then measured it again. The ice helps the nerve transmit the signal to the muscle and opens up the eye lid. After a few minutes it drops down again. He said that they have done tests and the ice test is pretty conclusive.