Lisinopril and weird sensation

I am a 35 year old female. Previous Dr. had been watching my BP for about 4 months and asking me to lose some weight - I am about 15 pounds overweight. Changed doctors due to insurance and new Dr. prescribed Lisinopril right away, 5 days ago. By the 4th day I was feeling tired, more than usual, and went to bed really early. Today, the 5th day, through out the day, I started feeling pressure on my chest, a need to breath deeply with some resistance, a weird sensation running from the heart across my chest toward my throat, anxiety thinking I was having symptoms of a heart attack. I feel slight pain running down my left arm. So, tonight before going to bed, thinking, do I have to tell someone what I am feeling? Should I go to the ER? I decided to look up side effects for this drug. And to my surprise I ran into this site. I am sooo glad to read that so many people are going through the same thing and have not had a heart attack. As I sit here, I have chest pain, and anxiety, and I was supposed to take the 5th pill tonight, but I am not going to. I will call my doctor 1st thing tomorrow and ask her to switch medications. Thank you for posting. This has helped me make a quick decision not to continue with this drug.