Hi Its About 12 Weeks Now Since I Am Having

hi its about 12 weeks now since i am having a lot of pains on my right leg.it started when i tried to lift a case of water.i felt a big crack near my waist.since then the pain flows down my right leg to my thighs and near my knee.i went to my doctor and he said its muscle spasms and he prescribed me cyclobenzaprine 5 mg 3 times a dayi am still having this muscle pains please help me