Posted 6/3/2015 6:24 PM (GMT -7)
Your son is very young, and I can completely understand why you would be concerned and worried. If I had to hazard a guess, I would think that it may be that his illness has changed the way he lives, sees himself, and therefore how he relates to others. Social anxiety can be a sign of depression, perhaps the future does not look quite as rosy as it once did, I know I felt that, and he is younger than I am, the sense of loss and hope for the future can hit hard, and once that feeling kicks in the enormity of what you have can fill you with despair.
Or alternatively it could be something unrelated to UC, and he is struggling to talk about the problem.