Do i have a serious scoliosis if its 28 by 28?

Scoliosis: This is serious enough to be checked. You should see an orthopedic surgeon specializing in spine. Have him or her check you curve.

No: A 28 degree curve is a moderate curve. For a 19 year old male, this should be watched with xrays every 5 years. Usually, however, a curve with this small amount of curve would not be considered a curve that will progress.