wow EarlyKids, my heart goes out to you, that must be so heartbreaking to watch. You love them both, you understand the why but obviously want to protect your DS2.

what is PDD-NOS? Is is something on the Autism Spectrum (as Lulu alluded to?).

sounds like it's very hard to keep them separate, you poor thing.

you're trying to get help, you're doing what you can. i really hope it DOESN"T take DS2 getting seriously injured, before you get some proper help for DS1 (I imagine long waiting lists etc, to try to get help).