Posted 2/11/2021 11:51 AM (GMT -6)
I would get more muscle fluttering / twiching in the past which is obviously only slightly bothersom, no pain ect.
That said, I would also have chest muscle tightness which was part of my complete whole body stiff/tension.
I could crack my sternum for many years by stretching with my arms out back. Now more relaxed, I can no longer crack my sternum, and don't need to anyway..
Not heart related.