Hello, I was prescribed propanolol 10mg for anxiety. I have only needed to take it on occasion which Really helped. However, I now am in the position that I need to take it everyday. I have been taking it for a week now and have begun to feel sharp stabbing pain in center of chest that radiates to the back. I do not know if this is anxiety or a real issue. I am a healthy 26 year old male. I have a resting heart rate ranging from 52-56bpm that drops in 40s. Past medical gastroparesis.