I have been having pain in my sternum area for about 2-3 weeks now and its only been getting worse. i initially thought it was soreness from working out. but now it hurts to sit up on my own, roll over, and when im laying on my side.

Costochondritis: Pure sternal,pain results from inflammation of the cartilage attachments to the sternum,by the ribs, and occasionally muscle attachments there. Sometimes esophageal reflux and indigestion (GERD) can mimic this location as well. After verifying diagnosis, steroid injections can resolve this, In The meantime, try ice rubs, Voltaren Gel to the area. Also consider and trauma that may exacerbate this.