Left thigh swelling. Plz advice me?

I have upper most thigh pain in left side...n minor pain pain I not too much bt all time irritating me... in top most portion of my front thigh their is swelling as compare to other side thigh..n in swelling portion pain is originate n come down to inner thigh portion.. I did mri of hip pelvic n ls spine n ct of hip all blood test comes normal no problem wid my report... I have deficiency of vit d3 n vit b12 is due to that.. I take injection n 60k IU for vit b12 n vit d3 one a week now only 2 week of does I have been taken. So how much time taken to leveled my vit level it's take long time?? What to do with my left upper thigh pain I have taken physical therapy also bt no relief...how to overcome my swelling plz advice me?? Thx