My initial symptom that I noticed was drooping eye lids. I had taken an out of town trip of about 75 miles and was fine driving on Friday. When Sunday rolled around, I couldn't hold my eyelids open to see to drive! It was a bright sunny day, so I stopped and bought sun-glasses thinking it was just a sun glare problem. Didn't help. I ended up having to stop about every 15 minutes and rest with my eyes shut in order to get home! I didn't know what was wrong and it took me about 6 months to get a diagnosis and by that time, I could hardly see, walk, sit, eat, breathe, etc. Looking back, I probably had mg for about 5 years before my actual diagnosis, but that weekend was definitely when I became aware I had a real problem!

Good luck!