Morning guys! For me, the eye pain is similar to when I have to use my arm muscles. After straining to use the arm muscle ( like hair dryer, emptying dishes from dishwasher and raising dish up to cupboard) well, after the 2nd to 3rd time, the muscle starts to really hurt in my arm.

Its the same thing with the eye muscle. To hold your eye staring up at the finger, if it is MG the eye muscle weakens (with or without pain) and the eye lid will start drooping or the eye muscle will scream out PAIN!!

Sometimes mine comes from inflammation behind the eye.

There can be SOOO many reasons.

Get a good neuro opthamologist to do a thorough exam.

I also have less problems with my eyes when I am well rested. The fatigue really shows in the eye lid droopiness.

Hope this sheds a little info.