For the past couple of months, our son (21 months old) has been displaying what we are afraid might be early signs of autism. He plays with us a lot less (and seems to have less fun in general), doesn't respond to his name and rarely makes eye contact. He doesn't seem to show understanding of basic instructions or communication. He also doesn't chew solid food (he just lets it fall out of his mouth) and is not talking yet apart from copying certain sounds in quite a baby way.
We are going to ask for an autism check, but do not have a lot of faith in the NHS to diagnose correctly or give the appropriate help. What advice does anyone have to help our son?
Could this be the results of mercury in his immunisations? Are there any good ways to clear this from his system?