Early January I decided to exercise. bouga circle circle pro. Started 10 mins and no problem. Next day 30 mins and about 3 hours later had the strangest uncomfortable feeling circulating around the left part of my chest. Worrying. The second day I did the same and the same thing happened. this was early January and I'm not sure what it could be. 

My timeline:

december the Doc placed me on meds. Stresses at work. Last may diagnosed with a slipped haetus hernia.