thanks for your question I completely understand your question costochondritis is the inflammation of cartilages across the sternum u need to visit a pulmonologist and evaluate yourself about the cause pain or symptoms or treatment in costochondritis is not associated with any food habit. to avoid- heavy weight lifting, fast movements Physical therapy may include: Stretching exercises. Gentle stretching exercises for the chest muscles may be helpful.other methods to get relief rom pain are -Nerve stimulation. In a procedure called transcutaneous electrical nerve stimulation (TENS), a device sends a weak electrical current via adhesive patches on the skin near the area of pain. The current might interrupt or mask pain signals, preventing them from reaching your brain. pulmonologist may start you on some analgesics like nsaids like ibuprofen or narcotic drugs and some antidepressants thanks /regards feel free to ask more questions may god bless you with good health