For me, it's a surreal life. Your child is "normal" to you, but not a typical child so of course you'll have doubts. I haven't doubted as much since we got his full report, a lot of my emotional struggles have settled down. Grateful for that, it's been an intense four years. I do still think, "what if the next test results are much lower? Then we were wrong!" But my DS 4 has been obsessively, excitedly doing multiplication verbally all day. I did think, "I bet a lot of four year olds do this." See? That's not a rational thought, but a reconciliation of a surreal experience. It's just surreal and you think there is no way your child can be that different.