Prolonged hamstring pain?

i pulled my hamstring about an year ago playing soccer for a prolonged period of time. A combination of bad advice from a PT and my own vulnerability and inexperience had me keep on playing. I finally stopped. Have been seeing sports doctors, chiro's and getting a massage. The pain is still here. I cant run; static stretching might be making it worse. And once i was playing lightly and my lower back began to gave in. I DO NOT have a tear; guaranteed by an MRI. I feel as if I will never heal. I have done everything; rest, hamstring recuperation exercises, heat, ice, epsom salt baths... HELPPPPPPPP!!!!!!!!!!!!!!!!