Well, I would check and see how important it is to your DS to broadcast those particular feelings and diagnoses. If it is akin to getting something off his chest and it will make him feel good about himself, then let him do it, particularly if those kids won't be in his future social circles anyway.
On the other hand, if he is looking for positive responses from his fellow campers, then I would help him edit his blurb to something deem more socially appropriate among his peers. By this age group, kids get pretty judgmental and will label and write off other kids as complaining/whiny or tending toward tmi. Your DS does not have to be positive, just not negative. I think kids are looking for interesting tidbits, personal interests, and humorous comments.
