Hi Doctor ! I've Had Nose Bleeds For 7 Months.

Hi Doctor ! I've had nose bleeds for 7 months. They started down in Georgia (I live in NY) overnight. I have a CPAP machine. I thought it was low humidity that caused them. I saw my Dr. in April and he agreed. I take Xarelto. I might go 2-3 weeks without getting one. I get them now after bending over for 2-3 minutes, e.g., pulling weeds. I'm going back to my GP this week but thought I'd check with you. Could it be a "polyp" or something more serious ? THANK YOU !