My symptoms were all relatively rapid. I was about 6 months from the first onset of any symptoms to having a thymectomy. In my case, I had a thymoma about the size of a softball. My oldest noticeable symptoms recovered fastest; but none of the symptoms were noticeably present for very long before I had my surgery.

First symptom noticed was slurred speech at the end of long days of working overtime ... and this one was the quickest to recover. An almost atrophied look to my tongue cleared up entirely and immediately (within days of the surgery). My eyelid droop mostly cleared up right away (as in within weeks of the surgery.) This hasn't cleared completely yet but it isn't bad enough that anybody who didn't know me would notice any longer.

I'm still noticing improvement in larger muscles as time goes on. I don't know how much more improvement to expect two years out from the surgery, but I'll take every little bit I get

Brian.