Hypertension

I'm a 35 year old male, weighing about 110KG, in the past year (2016-2017) for a period of 8 months I have been using High Blood Pressure medication (Ridac) because of nose bleeding which lasted 3-4 days. In conjuction with the treatment, I later started to use various brands of green tea untill I decided to only use Five Roses mint flavoured green tea. Early May this year, I stopped taking BP(Blood Pressure) treatment, eversince I never experienced noticable symptoms as before such as morning headaches, dizzyness, painful eyes. On the other hand, I kept drinking green tea from time to time. Five weeks ago,my lifestyle changed a bit, I started eating unhealthy (too much meat, especially red meat), stopped exercising completley, seldomly drank green tea and sleept less and focused more on my work & academic, and suddenly 4 days ago I started to have a strong headache, I drank Disprin & sleept and It didn't go away untill after 2 days. Yesterday (the 3rd day) I had no headache, but I started bleeding from the nose, the bleeding lasted 5-10 minutes. 3-4 hours later the bleeding came back, now both noses were bleeding, I quickly took CYKLOKAPRON tablet as I was struggling to stop the nose bleed. The struggle lasted about 30 minutes & when the bleeding finally stopped I had a mild-heachache on top of my head, a bit dizzy and slightly painful neck (at the back). Today, a day after the bleeding started, I have a mild headache, still dizzy, and neck pain is still there and the nose bleeding stopped yesterday. So what i want to know is, if I start eating healthy again, continue with the green tea and try to lose atleast 10% of my body weight, will there be a need to start using High Blood Pressure treatment again? Or its risky to stop taking the treatment. Secondly, what can I do to quickly lower my high blood pressure? Please note, i'm only assuming that my BP is high.