My rheumatologist ordered physical therapy for my shoulder and ankle pain due to inflammatory arthritis. I gave the physical therapist my history including mg and taking mestinon. She assessed me and said my arms were very weak, so were my legs, and even my core was somewhat weak. She said my shoulders and ankles were probably hurting because my other muscles were weak and gave me abdominal and leg exercises to do. This seems useless to me, like it will only tire me out. Can exercise improve my strength or maybe do I need more mestinon? Should I call my neuromuscular specialist?