Can't bring one arm up fully, pain/compression in chest..anyone else suffer this?

Rick
Have you seen a medical doctor regarding this ?
I would advise this now as a starting point to learning more
Likely the MD will not have any idea with regards to specifics with sprinting but will be able to eliminate anything medical which is your primary goal to begin with.
Once this has been addressed I would begin researching compression. Speak first to the person you had success with and look at this as a project.
Likely your answer is a combination of a few things. In my opinion use the information you collect and think this through for yourself.
Keep us posted to let us know what you learned.
good luck
Ange