I used to experience this type of deep pain in my sternum prior to being on Remicade. It would come and go. That said I would ask for a CT to determine if there is any abnormality which would explain the pain. If not, I would ask your MD if the medications (biologics) would be appropriate and if so would begin one. I remember that type of pain and it was so very hard to deal with.
Ank Spon since 18 years old began as Reiter's Syndrome. Diagnosed with Ank Spon 2001, Remicade since 2002 - 5mg/kg every 7 weeks. 8 hour Tylenol and hot tubs for pain.
Severe Right Eye Glaucoma- Trabeculectomy/lens replacement 2006. DSAEK Cornea Transplant 2009. Ahmed Shunt 6/2016. DSAEK November 2016.
Supra Ventricular Tachycardia. 2004. Cured by RF ablation 2006. Cardizem 240 CD.
ICU and ER; R.N. San Diego ~Grasp The Challenge and Succeed~