As for hysterectomy and influence on hormones...I have no idea. Perhaps it's the influence on your facial hair. If not, I would think a look into Testosterone & Dhea-s (or perhaps Testosterone alone would suffice.) P.C.O.S. can cause hirsutism (and a number of women who suffer hypothyroidism, also have PCOS). As can adrenal problems.
I would ask your doctor to take a look into your hormones (Estrogen, Progesterone, Testosterone...), if only to put your mind at ease. If he/she is unwilling to...you CAN do this on your own: http://www.healthcheckusa.com/lab_tests/The_Roby_Institute/The_Roby_Institute_Female_Series_option_A
Best!
This is called hirsutism - - would see a general endocrinologist to figure out if it is due to excess testosterone or DHEA, or whether it may be PCOS.