Few Months Back, I Found My Bp Was 180/110, Maybe

Few months back, i found my bp was 180/110, maybe because of some unhygenic food i ate... i went to doctor..he prescribed amalong and my bp went down to 160/95... he then increased the dose and prescribed Amalong MT 50..my bp dropped to 140/75 to 145/80..

I then performed an experiment and stopped taking the pills but changed my lifestyle and mainly eating habits..my bp got lowered to 125/75 and now it fluctuates between 125/75 to 140/80 depending on routine i follow.. on lying down it gets to 110/60 ... currently i am not taking the pill...

Should i leave it and continue improving the lifestyle.i am overweightand 23...or should i have to keep taking the medicine..