I Was Prescribed Amlodipine For Having High Blood Pressure. After

i was prescribed amlodipine for having high blood pressure. after the 3rd day of 5 mg i started feeling really light headed and dizzy and anxious that something is wrong. I didnt take the pill the 4th day and i dont want to take it again but everywhere i look it says dont just suddenly stop but it on has been 3 days. I am a 27 year old male