i take metformin hcl 500mg -2 tab 2 times a day(2000mg). multivitamin 1 tab a day gliclazide 80mg 2 tab a day.(160mg) perinace tablet 4mg 1 tab a day and simvor 20 10mg a day. i still have a bad backache, feel tired after doing light work. foot pain if i stand for sometimes. how can i overcome my problems