Desert,
Sometimes I get palpitations, not really pains, but feelings like I'm falling, or suddenly going down the high sloped drop on a roller coaster when I have mestinon time-release, so I'm pretty sure that I'm having overdose sx (that one is released into the blood-stream at unpredictable, differing levels, so sometimes you can get too much). I get blurry vision, sweating, twitching, and so on. It makes me very nervous (like I'm going to have a heart attack), so I get really physically tense too...Unfortunately, my muscles work very well when this happens at times, so it sucks that overdosing is what I need to make my muscles work...lol
But anyway, I really have this gut feeling that you might be getting better and therefore might be overdosing on the mestinon. I'm curious what your doctor will find tomorrow. I hope that this is the reason, and I wish you lots of luck in your appointment.
Nicky