What Causes Breathlessness And Chest Pain After Taking Carvedilol And Furosemide?

Good day Dr. My cardiologist placed me on furosimide, carvedilol, lisinopril, and spironolactone simultaneously when I had difficulty breathing, chest pain, and a BP of 165/90. My BP became normal after months of medication not exceeding 120/76 on the average. I don t have any swelling on anywhere on my body and wondered why I have to be on furosimide and Spiro. With normal BP, I sometimes feel like passing out and at times have palpitations. My triglycerides measured 266mmol while cholesterol are all within normal range. I weigh 83kg and 45yrs old. Pls kindly advice me Doc.