<s>[INST] hi im in my 30s and recently my middle, ring, and pinkie finger on my left hand have been swelling and turning red and having a burning sensation it feels as if my fingers are going to explode. I have recently been diagnosed with thyroid and have been put on Levothyroxinel. why do i feel this burning sensation lately? [/INST] Greetings from Chat Doctor. Thanks for posting your query.  It may be due to arthritis of the finger joints or infection of the whole fingers. You require a proper medical attention as this problem requires Antibiotics and certain tests like Complete blood count, Serum Uric Acid and X-ray.  I advise you consult an Orthopedic and get treated fast, else it may spread and cause complications. Hope you find this information useful. Any clarification feel free to ask. Regards. </s>