Thanks for providing more information.
As you describe you need to be seen by an Orthopedist for a clinical examination and undergo CBC,ESR,RA factor,CRP,ANA and X-ray of lumbosacral spine to rule out underlying possible cause which may include Degenerative Arthritic changes,Rheumatoid Arthritis,Polyarthritis.
You shouldn't ignore morning muscle stiffness as it can gradually get worse over the time.
And you may require prescribe medications as per diagnosis.
Physical therapy can be effective.
Also elevate your leg.
Take OTC Motrin for pain relief.
Even avoid prolonged use of fish oil as it can increase the risk of bleeding.
I hope this helps.
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