About 10 years ago found through cat scan sinus cavities were double the size. to this day have nose bleeds and cluster headaches. what can help me?

See specialist: Start with your ENT physician for reevaluation and treatment options. They should be able to team up with whomever to address your combined problems. Best of luck.

See an ENT: The best way to establish whether or not your headaches (cluster) and nosebleeds are related to your sinuses is to see your local ENT and undergo a formal evaluation, tests and imaging.