Hi,Dear,Thanks for your query to HCM.
Dear I read facts of your query and reviewed it in context to your health issues submitted.
I understood your health concerns and feel Concerned about them.
Based on the facts of your query-
Your current health issues seem to be due to 
hamstring sprain from gyming.Proximal hamstring 
tendinopathy needs to be ruled out.
Other Cause of these complaints -like disc problems from PID,needs to be ruled out.For this you need to consult Orhtopedic and / or  Surgeon who would investigate after physical assessment.
Do's Suggested-
Consult and physically examine from 
General Surgeon or 
dermatologist.
They would Do needful Investigations-and would rule out other causes also.
Get USG or CT if need be to confirm any other clot/ or hamstring tear.
Rest
Hot fomentation 
Infra Red light x 1 week
Tab 
Flexeril 1 x 3 times a day
Or 
Baclofen  1 x 2 / 3 times a day 
Tab Zincovit 1 x 10 days
Tab 
Combiflam 1 x 2 times x day x 5 days
Thus You should consult and get above treatment.This would resolve the complaints of your's.
Constant follow-up with General Surgeon or Orthopedic Surgeon for long term would give you long remissions of such complaints in time to come,which would depend on meticulous follow-up treatment of your health concerns.
Just don't worry and be patient and co-operate with your doctors,till you verify with your attending doctors.
For early recovery-please follow above do's which would resolve your complex health issues.
Hope this would help you to treat your health issues in the best way possible. 
Welcome for any further query in this regard to following link-
http://doctor.healthcaremagic.com/Funnel?page=askDoctorDirectly&docId=70229
Wishing Good Healthy Life!!
Dr.Savaskar M.N.
Senior Surgical Specialist
M.S.Genl-CVTS