I don't have a firm diagnosis,(MG and LEMS top of the list though) but get IVIG for my issues and have several like you as well

I for sure have the eye focusing issue.. when I am needing IVIG it gets pretty awful... before IVIG I would get hoarse easily as well

Southblues- YES I have the ear stopped up thing when I'm having an exacerbation as well.. can't stand it!!!

I get leg pain as well - mostly in the buttocks.. its quite uncomfortable..