Muscoskeletal chest wall pain when bending head forward and when pressing chest. Some exercises? Remedies? Repetitive stress injury?

NSAIDS,Tylenelol. Injections with anesthetic or anti-inflammatory medications in or around the painful sites exercise that includes muscle strengthening and stretching physical or occupational therapy.Acupuncture or acupressure.Relaxation/biofeedback techniques.Osteopathic manipulation (a whole system of evaluation and treatment designed to achieve and maintain health by restoring normal function to the body) massa.
Chest wall pain. Likely costochondritis in your age group. Try rest, nsaids, purified omega, gentle massage, ice then heat. Yes, may be overuse or strain.