I have experienced a lot of chest pain related to anxiety and have talked about it here before, I've done ecgs, xrays and blood tests and they all turned out fine. The thing bothering me is that I started a new job yesterday which requires me to go on an electric bike to make deliveries, during this period I was having chest pains and it hurts to breathe. A day after I'm still having pain when I breathe in, I haven't exercised for a while or really left the house so I'm not sure If that's the case. Furthermore,  my resting heart rate was higher during sleep compared to every other night, during sleep my heart rate typically drops as low as 59, however this night the lowest it went was 72 and was mostly 80 and above through the night. Is this normal?