I completely understand. I only talk about DS with a few other moms, people I love and have known for 5 or 6 years. Fortunately, they know our son and know that our issues are genuine challenges, not random whining. These are the same moms who talk to me about their 8yo children still not reading fluently...and I offer my ear for them to talk about that.
I have other friends and acquaintances who don't hear much of anything from me about our son's academics. I just would never bring it up in a conversation.
Tara
