Heartbeat increase and Head Spinning.

I visited to a general physician near me for back pain he checked my bp it was 150/120 he gave injection and gave me anxiety medicine (Etilum Pro20) and Bp medicine (Triolmighty 20) and told me I can't take cough syrup and pain killer.After taking bp medicine for 2 days I am feeling increase in heart beat and head spinning,I visited him again and he told me that bp patients face this problem everyday.But after taking medicine for 5 months.No improvement, Doctor told me that I have to continue taking medicine till it comes to normal and stay for a month. I am a 1st year student I always keep that medicine in my pocket who knows when I need to have that. Can anyone help me please I want to cure this problem permanently??