I am a vietnam era veteran who was exposed to agent orange and have ed treated by the va, i have been diagnosed with hypertension and taking meds from the va. my question is does hypertension cause my ed?

Hypertension contributes to ED. Lower your blood pressure and your problem should improve.

ED can result from multiple factors including age , alcohol use, chronic conditions as diabetes, hypertension.cholesterol, medications, psychological issues. Maintaining normal body homeostasis helps. There are other treatments available for ED as well including Viagra, Cialis, exercises. F/U with MD/ urologist. https://www.healthline.com/health/erectile-dysfunction#alternative-treatments