BP 160/110 in morning. Do i lower my bp?

I always check my BP every month. Previous reading is 130/90 sometime it is 140/90 .I am little bit stressed from last 2 months.having stomach gas problem.I gain my weight from 75kg to 86kg now. I have bilirubin (T) 1.50mg/dl and Bilirubin (D) .90mg/dl . cholesterol 199 mg/dl. Triglyceride 208 mg/dl. VLDL Cholesterol 41.60 mg/dl. I am taking ecoasprin av 75.and pan D. Everyday. Yesterday I checked my BP in evening it was 160/100 in left hand and 145/108 in right hand.today I checked again in morning 160/110 in left hand and 150/110 in right hand. Before 40 days I took reading it was 125/85 in left hand. What should I do now? Because before 40 days it was normal but now it's showing very high.from last 4-5 days after taking food I feel nausea.i am thinking it was due to hot weather.tomorrow I will go for a trip due to stressful life I am taking break but after seeing my BP reading I am worried.how do I lower my BP? Please advise.Thank you