Thanks ladies,

Yeah my SiL son has autism also and he is very smart he walks around with an atlas, tells me about all the planets etc. Very clever boy my sIL always tells me how much my son reminds her of him but she says his alot smarter then her son was at 4
Thing is his excellent verbally but way behind in the other important stuff. Some say it's not important but when a 4 yr old can't even say 1,2 let alone 123 that's where it's starting to become concerning too
He is also the most affectionate child I have lol which melts my heart but I'm starting to get frustrated with the dr because he says there is something else too my son but no idea what? Arrgghh so frustrating