Extreme pain in chest, left side of neck and shoulders

[Shadowburks]

For the last month or so. I have been experiencing some very extreme pain in my chest. That travels basically all over the left upper side of my body. It virtually takes my breath away. It hurts worse whenever I go to get up or lay down. Or when I lean my head over to the left. Got any idea's on what could be the cause

[Paxiled]

Do you lift weights or work out?  Sounds like you strained something.

[LRon]

A muscle pull perhaps. Go see a doctor!  :-)