I have kyphosis and a pigeons chest and I want to know if bracing is to late because im almost 17 and is organ pain bad with this condition?

Hypermobility? ? Is organ pain associated with pigeon chest & kyphosis. In teenage male Hypermobility Syndrome (HS) might be explanatory. See Brighton Criteria & take test on-line. Bracing cannot change posture, but body physical culture, sensible diet (avoid obesity) & yoga can; tone all major muscle groups. IBS w. abdominal cramping can be associated w. HS. Other associations: chronic back & neck pain.