TW: spectrum/Autism

Can anyone give me advice on non verbal/autistic toddlers? My son is 17 months and to me shows a ton of signs and i just want to be prepared with knowledge. FTM so im looking for experience from other mamas. He doesnt speak yet, lines everything up in a line, runs in place/goes in circles, covers ears, loves being upside down. Just a few things i can think of off the top of my head. TIA