<s>[INST] I have a really painful left foot which is under my foot ,below the biggest toes joint. felt warm and swelling. between the middle foot and biggest toe. I have seen he doctor and done the x ray and seen nothing un usual and prescribed me with NSAID, Have any idea what s this? [/INST] Hi Hope this message finds you in good health.I have gone through your complaints and understand your concern.u seem to have strained a ligament or may be u have raised uric acid levels in blood.'get  blood check up done.rest analgesics,hot fomentation shud help.Nothing to worry about.     I hope your question has been answered.If you have any follow-up queries,feel free to consult me anytime.Thanks,Take care,God bless. </s>