Anxiety or Heart related issues. Worry?

Hi, In Nov '17 i was detected with hypertension. Against my will i started taking BP medication. When i was detected with high BP, i was so worried that i started feeling chest pain every now and then. Post which i got ECG and 2D echo done which came normal. I started exercising and lost 10 kgs in last 5 months. However, i have always got this feeling that I still  have chest pain and i might get heart attack. Entire day i am worried if i have a minor chest pain. My doc said this can be anxiety but how come its been more than 5 months and i still have the same anxiety Also, i feel dizzy and light headed despite being so active. Current medication - Prolomet XL 25 Is this anxiety or something to worry?