I suffer with very high blood pressure, and can't afford health insurance, is there anything over-the-counter that i can use?

Depends on severity: This really depends on the severity of your high blood pressure. Hypertension is one of those illnesses which does its damage in the background -- at least for the first several years you have it. But it can damage eyes, heart, kidneys, and brain, & needs ongoing follow-up and management. Please check into health department clinics near you -- and/or resources @ http://www.Needymeds.Org/