Conversation: The conversation between human and AI assistant.
[|Human|] I had a full knee replacement in October of 2013. I have had many problems. Now it is burning and clicking and the pain is starting to be constant again. It is getting hard to bend and walk and sleeping is getting harder and harder. Should I be concerned? Thanks.
[|AI|]  Dear Sir/Madam, I thank you for having faith in Chat Doctor and for seeking help on your issue; I have gone through your symptoms, the knee replacement has the main role to correct your pain, if it has not then there is something wrong either your pain is not from joint or you are having any secondary complication to the surgery. The feeling of burning could be due to neural involvement of deficiency of vitamin B12. Consult your surgeon and discuss these issues with him. I hope I have been able to provide you with a satisfactory solution, if you want to clear any doubts about my opinion, feel free to contact. Special note-Any medication prescribed needs to be taken after consultation with your personal doctor only. Thanks