About 2 weeks I starting getting a very bad pinching feeling in my chest and I couldn't breath to well. I went to the ER and they said I was having PVC'S. Is there anything that cause PVC to just start? I'm scared cause it hurts and they have not told me why I am having them or if they will hurt me. Just tell me they are usually normal unless they hurt. Well mine do. Really bad. Any advice? I stopped drinking caffeine and am trying to eat healthier but they still hurt everyday and my mental status gets affected by it.