I have to agree - - it does sound like you should be evaluated for MG.

Take it as easy as possible when you feel weak. And if you have breathing problems that progress (or endanger your ability to get a decent breath), you shoud go to the ER.

Also, it would probably be a good idea to cross check any other meds you may be taking against contraindications for MG patients since some pain meds can increase weakness in MG'ers.

I hope you are able to seek med attention soon.
Sue