First symptoms.

Hello, i am looking for some answers / suggestions, while i am waiting for my neurologist appointment. I have several symptoms: dry eyes , double vision , my thymus is enlarged, my thyroid is inflamed and with nodules , also my parathyroid. I feel unstable and clumsy. I often fell or things fell of my hands. I also have anemia and high parathormone. Are all of these symptoms related ? Are they referring to myasthenia gravis? Thank you in advance. I have gone to some doctors but no conclusion yet.