Hi, my names are Sande Balecho aged 44 yrs, I have a problem with my lower back pain, went to see a doctor did an x-ray and the the reports were ok only that they said that I had some muscle spasm. they did give me some antibiotics, painkillers and ointment to smear the affected part. of let there is a strain at the back of the right thigh like a vein..especially..when kneeling/or sitting position feeling lots of pain...(note, even at this age I do play soccer..i just suspect at some time I did strain myself when playing soccer)...please assist me.