Thanks for all the replies. I feel like I just got done showing friends a mysterious rash...

I am planning on seeing the doctor but thought I would reach out in regards to a set up issue first. If I felt the pain had something to do with my heart or lungs I would definitely have already been in to see the doc. This pain isn't a heart or lung pain. Now I'm no doctor and some may think that I'm self diagnosing but I can tell that this is a muscle pain. Like I've had in the past when I used to lift weights a lot and would go a little over board on the bench press. The area around my sternum would be sore for a few days.

When I stretch my arms out wide I can feel the pain on the inside of my peck's, or if I cross my arms and tighten my chest muscles I can feel it. No labored breathing, or unexplained fatigue, or anything that would lead me to believe its a heart or lung issue. It didn't start until I started regularly riding 3 days a week to work. Which is the reason I am associating it with the ride and more miles than I've consecutively logged in the past and not something else. I don't notice it while I'm actually riding, typically I'll notice it a little later in the afternoon. Sore chest muscles. With an emphasis of sore in-between my peck's.

I'll check back in after the doctor's visit. But in the mean time, if anyone has experienced sore chest muscles that could have been a result of a set up issue, feel free to state what might have been the cause and if there was a remedy. It could also just be I'm putting a little added stress on my chest muscles, and they aren't quite used to it yet.