Alan
I am agreeing (from experience) with JoanMarie about symptoms getting worse with too much medication. My doctor started me out with a too much Mestinon and I had a terrible experience worse than my initial symptoms. I felt better within a few hours of skipping a Mestinon dose and have since reduced my dosage. I am only taking Mestinon so my experience my differ from yours.
When I had the overdosage my experience started with a tightness in my ankles and forehead, tight muscles that kept getting tighter everywhere, and then pain in all my muscles and mostly in my ankle and forehead where the tightness started. I had a hard time bending my legs and felt like frankenstien. Such a relief to reduce the dosage of Mestinon.

I hope you are feeling better.