I am a 26 year old male. I started having a sharp pain in my inner front left shoulder/sort of upper chest area a couple of hours before bed. The pain got a little worse by bedtime, but wasn't too bad. The pain has increased enough to wake me up a few hours into my sleep. I haven't done anything out of the ordinary that would lead me to think it's muscle pains. I don't like being paranoid, but should I be worried?