Thank you for asking your query.
Your blood tests are all normal. And I assume no joint aspiration was done. In that case I think your Doctor might have made a provisional (or a probable) diagnosis of gout. This should be confirmed by certain specific blood tests like Uric Acid levels. Also some joint fluid needs to be examined under microscope to confirm it. With out this you can never be sure that it is Gout. Other possibilities are joint inflammation, infection (septic arthritis), post infectious arthritis (typically other joints are involved), traumatic arthritis, and pseudo gout.
So colcrys might not help much in your case. You can take an NSAID (pain medication) in consult with your Doctor. Next step would be an Xray and Joint aspiration study if the pain and swelling is still persisting.
Hope this helps.
Please feel free to ask any followup questions via this email itself
Dr.Deepak Misra MBBS, MD
Fellow in Rhuematology