Leg joint muscle pain. Its common only.

I have been experiencing muscle pain in my right leg for almost 3 months. I have consulted with my doctor in after 10 days of pain started, i was told there is nothing to worry about and nothing is broken or something and he prescribed me Aceclofenac-+rabiprazole 10 tabs. After that i was suffering from dangue symptoms and pain got worse. After a month recovering from dangue still the pain in leg slightly reduced. Then i went two more times to doc. I was given same tablets aceclo+rabi. Then 4th time i was told to get x-ray report. There's nothing out of ordinary, i was prescribed aceclofenac+rabiprazole and Brutaflame90 mg. for 10 days. After 10 days i was feeling okay. But after 3-4 dys after walking and working more than usual i started having pain again. I don't understand why it is happening. The pattern of pain is slightly changed since start, earlier i was getting pain when i stretch legs after seating two much time on legs( Indian toilet style) + common. Now its common only.