It might be that you need a different dose. My understanding is that having too much Mestinon can create problems, and a lower dose can work just fine. Perhaps a whole tablet is too high a dose in your case. When I started taking Mestinon, my doctor had me begin with 1/4 tablet. It might be worth asking your physician about trying a smaller dose to see if that would be effective. Then again, a different medication altogether might be better for you, too. I hope the doctor can give you some good advice when you see him/her.

Best wishes,
ErinBear