<s>[INST] I had a clicking in my left part of my head  while walking sometimes, about 3 years ago. I had a MRI and itwas not a tumor. It might of been just something with my jaw or tmj because when I held my jaw shut together, the clicking sounds would stop.  I recently just realized that when I cough I feel a slight pain for about a second in my left side of my head or near forehead. Ive read some stuff online saying that it can be a tumor is this true. It only hurts for a second that I cough and Im not sure how long its been going on. I just noticed it today. I have no other symptoms. [/INST] Hi there ~I understand your concerns.  Having something unusual happen to you can be quite discomforting.  I am glad you got an MRI brain done, and no tumor was detected.  The clicking in the left part of your head might be due to a temporomandibular joint (TMJ) misalignment.  A lot of people have this kind of issue.  If you have not other symptoms other than this clicking and some pain which may be related to the TMJ issue, I advise you to not be too concerned about it.  However, if the pain gets worse, please consult a doctor. I hope this helps.  Take care and have a lovely day! </s>