8675309fan
Registered
Well, to me, not a medical professional, then it sounds like muscle strains like your original doc said. Cardiac pain is weird in that moving or changing position doesn't really change it. If you move and can make the pain worse or better it's usually muscle pain.
Good luck with figuring this out. Enjoy your dives. You'll get more relaxed as things progress and things will probably get better. If you have any doubts however, get in touch with DAN and a Diving Doc they'll get you straight.
-Thank you so much for your input and well wishes. I really do hope this is just because diving is a new experience for my body.