Tracy, Which "Annie" were you commenting to? I want to clarify that I have a diagnosis (AnnieB3), while Annie59 has a "sort of" diagnosis but not a neuro to help her, which isn't really help!

What IVIG also does is to alter your fluid status. It could have altered your electrolyte balance as well and THAT is what might've made your MG worse. Any decrease or increase in things like calcium, potassium or magnesium can make muscle weakness worse.

The IVIG may not "kick in" for a few days for MG.

Yet another reason why you should have gone to the ER. They can check that.

You will get better treatment than Annie59 did in the ER because you have a diagnosis. Sad but true.

I hope you will get help. You really need it. Your primary doctor can prescribe Mestinon too.

Annie