Low blood pressure. 10 mg amlopres 5 mg!

I am 54 year old women. Weight 115 kgs. Taking blood pressure medicines since last 3 years. Blood pressure had been in the range of 150/100 on average. Recently in Aprl 2017 i was diagnosed with type 2 diabetes that was around 400 post meal approx. So i immediately made some lifestyle changes to my food and body activities. In the last 30 days my blood pressure has drastically come down to 120/70 and diabetes to 180 post meal without any diabetes medicines and changes in bloodpressure medicines. I feel giddi on many occassions due to lower blood pressure now. I wish to know if i should reduce my blood pressure medicines. Meanwhile medicines that i am taking .. In morning : Ciplar 10 mg Citapin xr 500 Celine Me12 Bplex forte Calcimex forte Omicep Evening: Citapin xr 1000 Night: Ciplar 10 mg Amlopres 5 mg