Can't Breath While Leaning Forward, Pain in neck and throat

My name is Mary and I am a 33F. I was struck by an SUV while walking. The back of the SUV hit me in the front torso, upper torso while I tried to protect myself with my hands. First symptom: sore ribs, bump on back of head. X-ray came back ok. Chiro treatements not effective. Orthopedist who saw me for 10 seconds sent me to physical therapy. PT notes poor posture, shoulders raised, possible right rotator cuff injury. Popping sound and immobility in right shoulder, especially lifting right are straight over head. Left and right trapezius are excruciatingly sore. Slightly hardened muscle tissue in right side of neck and throat area. Saw general MD to test lungs and heart. Lungs clear and heart good. Back to orthopedist for 5 second visit. Provides sonogram of shoulder. Still waiting for call. Current symptoms: pressure while breathing, difficulty breathing, shallow breath while leaning forward, standing, sitting upright, rotating shoulders forward and laying on side. Cardio activity fine. Breath normal while reclining or laying flat. Pain in neck and throat, right side. Trapezius muscles, muscles separating shoulder from spine, rotator cuff, all areas around clavicle, sternum, and between upper center ribs on both sides are all sore. New lump - bone cartilege between the ribs that are three inches north of belly button and slightly to right, possibly just dislocated. Maybe the xyphoid process? Would appear to be the xyphoid process if it was always there, was never poking out so profusely, nor was it favoring the right side. The bone-cartilege area was an inch in diameter, connects center upper ribs near diaphragm, is tender to touch, possibly swollen and all ribs connected to it are blindingly sore. Otherwise in good health, heart, lungs, blood pressure, no cough. I had an AVM removed successfully 5 years ago. Doubt it has any relevance but i do have titanium in the right rear skull if it matters.

God bless you if you have any clue what is wrong with me. My deep breaths hurt somewhere in upper chest throat while leaning forward and it is scaring the heck out of me. I have seen a neurologist, internist, chiro, orthopedist, PT, had x-rays and have been sent home with no help.

Thank you so much for reading and any guidance