Suggest Treatment For High BP

I was diagnosed with high blood pressure last year after i pushed myself too hard physically, and i ve since been able to come off my meds by dieting and exercising. But i recently did an exercise that was too tough because i thought i could handle it, and the whole day after i felt unusually groggy and my systolic number was about 10 points below normal. Now that i ve recovered somewhat, my resting blood pressure is normal but it goes a bit higher than it should when i m excited or active, sometimes causing loud ringing of the ears or other symptoms. I try light exercises throughout the day but it seems like my heart is getting worn out easily, where i will get a heart rate in the 50 s sometimes or my systolic number will drop to below 110 and then my pr and bp fluxuate a bit higher throughout the day when i become active. I want to know if maybe you had some idea of what could be wrong or how to know when my exercise is too much because in contrast to exercising a fair bit before, now it mainly consists of just my daily activities and if the bar s been lowered that much i m just done. 20 year old male, scared that his new life is already over. 3 months til cardiologist apointment, primary doctor doesnt seem very concerned with my problems. I used to actually have a life.