<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hey im female and 20 years old. The past two days ive had back pain between my shoulder blades and chest pain where my heart is it feels like theres 100lbs sitting on my chest accompanied with spells of shortness of breath and worse pain when i breathe sometimes. I dont have a fever. What could the cause be?  <response>: Hi, There are many explanations to your current symptoms, including: - heart problems - conduct ECG, holder monitoring, cardiac echo-lung problems - chest X-ray- pancreaticliver problems - abdominal ultrasound-complete blood profile-liver enzymes nothing will come up, then, it could be related to spondyloarthrosis for which should perform X-ray of spinal cord chest levelAll the best! Chat Doctor. 