my best friend has been having, he feels, cluster headaches that have occured often over the past 2 yrs. Lately it has gotten worse and he's been coughing up blood and having very painful headaches. At this point he dosen't know what to do. He went to an ER in NY but the DR told him that it could possibly be bronchitis but he would need to see a Dr for more info. Would you possibly shed a little insight on this problem for us. Thanx

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