Doc why do I have nose bleeds every now and then. I don't have high blood pressure. I don't suffer from any illness. Since I was a child I had this.

Several possibilitie. Von villebrand disease, dessication, cocaine, deviated septum, foreign body, polyp, nasal telangiectasia (hereditary/congenital or acquired), nasal allergies, hypertension, blood dyscrasias, thrombocytopenia, uremia, medication side effects can all cause epistaxis. Seek medical care with your family physician first and a specialist as needed (ent, hematologist, allergiologist/immunologist) asap.