Backseat of my car symptoms and conditions

I have been on Lisinopril 20mg.for 4 years now. At first I just noticed fatigue and a lack of motivation to do things. A year later, I started having chest pain, fast pulse up to 130/min. and activity intolerance especially after meals. I went to my Dr. and he put me on a beta blocker to lower my pulse. At first it worked and I felt slightly better. Now I have all these symptoms again together plus I have gained 22 pounds from the activity intolerance and the beta blockers. I went to my Dr. this week and told him I am going off the Lisinopril with or with out his help. He reluctantly agreed and lowered my dose.It is very important to wean off this med and not stop taking it suddenly.I am weaning off the beta blockers too. He has given me HCTZ to assist to lower my B/P while I wean and to help lose weight which I am motivated to do. Wish me luck!