Thanks for posting your query.
From the description, it seems that you are suffering from polyarthitis, the cause of this might be Rheumatoid arthritis
(RA), systemic lupus erythematosus (lupus), psoriatic arthritis
, osteoarthritis (OA), Infectious arthritis
or crystal deposition arthritis
It not seems to be related to effect of femlion usage.
I also encourage you to consult an orthopedician/ Rheumatologist
for physical examination. A few blood tests and X-rays will help us diagnose the condition and help us in choosing the best approach of treatment.
In the interim, you can take anti-inflammatory drug like motrin1 tablet with food as and when required (upto 4 tablets daily) to reduce pain and inflammation.
Wishing you good health
Dr Saurabh Gupta