I just started doing a Westside template and a few days ago when doing dips I noticed some pain in my chest. It doesn't feel like muscle related pain however. I only feel in sometimes when I am in certain positions laying down or something to that effect. It's not unbearable, but it has been there on and off for a few days, any ideas on what I did? The location feels where the pec hits the sternum area on the right side.