<s>[INST] I have been crying I believe for good reason.  I have a daughter with autisim but I told my doctor sometimes I just start crying and can t hold it back. He now wants to do a CT scan of my head.  Is that to look for a tumor because of crying.  I came home confused. [/INST] Hi, It appears that your doctor understood that your crying spells are unprovoked and without any reason. This can be caused by brain tumors or other pathology in the brain. That is why he wants to rule out any brain pathology which can be responsible for this. So he suggested a Ct scan of your brain. If you cry only when you are sad and this sadness has been persistent and pervasive for the last few weeks, most likely you are suffering from a depressive episode. Please discuss this in detail with your doctor and do not withhold any information from him. Best wishes. </s>