Conversation: The conversation between human and AI assistant.
[|Human|] My knee is killing me, it is stiff and it takes me a few steps to put weight on it, i am in continual pain and it is hard to bend. I injured it five or six yrs ago, though i dont remember how. It has progressively gotten worse over the past month. I walk periodically for up to six miles at a time. It feels disconnected when i am w alking. Ibuprofen helps but right now it really just hurts 24 hrs a day. I cannot afford an MRI, it seems to hurt all around my knee and right above and below it.Any ideas?
[|AI|]  Dear patient pain in the knee for 6 years and with worsening and difficulty in walking is pointing towards significant knee pathology like 1. Meniscus tear 2. Chon Chat Doctor.  Arhritic changes. For accurate treatment diagnosis is required. And for diagnosis MRI of knee is must. Mri is highly sensitive and specific for knee pathology. Please get it done from radiology center nearby you. Taking analgesics randomly for pain is not advisable as it has its side effects. Hope this is useful.