For months now this pain in my chest comes and goes and is excruciating. I have asthma and GERD. Ive been put on new asthma and allergy meds and my breathing has been checked religiously and checks out fine. Ive had several recent EKGs and nothing can be found. I’m wondering if something musculoskeletal can be responsible for this. Lately my butt/leg/foot has been in pain and sciatica could def be the cause. Could that also cause chest pain? The pain can be anywhere on my chest. Left/right/middle/nearing the shoulder and hurts when pressed on. Also pain/pressure immediately when lying flat on back.