i am progressively developing muscle weakness and tremor in my hands and arms, have severe painful cramps in my calves, shins and feet at night, body stiffness all the time. I have been on Galvus Met twice a day for 3 years now. i am also hypertensive and hypothyroid with GERD. I take Fortzaar, Aldactone-A 25mg, Byscard 2.5mg, Euthyrox .5mg, Omeprazole twice a day, and 15 units Lantus. Do you think the muscle weakness and tremors could be side effects of Galvus? i have multiple other health problems but this is the most bothersome at the moment.