back muscle ache

All I pulled a muscle a 3 years on my right hand side hip (Either Gluteus Maximus or Gluteus Medus)

I dont think I have properly exercised this injury out and made it stronger.  I find when stretching my right hand side is tighter  

Also I feel this dull achey pain down my right hand side thigh if I walk alot or am sat down (I think the muscle is called:  llotibal Tract band)

Also I think its related but I get a dull throbbing pain on my left had side shin area muscle  (Tibialis anterior) 

What can I do to solve this issue.  I was thinking i need to see a muscle or bone doctor,, but not sure

All your feedback will be gratefully received

I would go and see a sports therapist they may be able to do a deep tissue massage, also i use soft gel ice packs on my IT BAND and piriformis it helps a lot, good luck😊