Hey PMCPMC,
Welcome to the group! Maybe you will need to take the mestinon more often like every 4 hours. It's good you are going to see your doctor tomorrow so you can discuss it with him/her. Be sure to let them know about ALL your symptoms. I'm glad the mestinon is working for you. Good luck with your appt. and let us know how you make out.
Hugs,
Pat