Conversation: The conversation between human and AI assistant.
[|Human|] age 33, height 52, weight, 215, female.  I have had a bad headache for the past couple of days and now there is a lump/bump on the back of my skull that is painful to touch.  I did not hit my head on anything so Im worried about the bump...should I be going to urgent care?
[|AI|]  Hello! Thank you for the query. Such lump is most likely a sebaceous cyst which has gotten infected. In such case the lump becomes very tender, swollen. If it's on the head, headache can be present. It is also possible that this lump is an enlarged lymph node. As an infection on the head can spread to the brain tissues and cause serious problems, I suggest you to consult general surgeon as soon as possible. If it's a cyst, should be incised and Chat Doctor. Hope this will help. Regards.