Yes ds played peekaboo and pointed, did the usual milestone things
but we noticed at around 2 or 3 that he didn’t imaginatively play, really struggled socially in playgroup and later in school, had really poor sleep and awful meltdowns that could go on for hours. Also obsessed with cars
I of course was told it was in my head, I was an over anxious mother (hospital psych wrote that on my sons notes) I was a crap parent etc.
diagnosed with adhd at six and then after completely falling apart in school and becoming very violent and aggressive towards me he was finally diagnosed with autism at 13.
dd1 the opposite. Hit every milestone, spoke early, read early, was on the g and t register at school and was no problem until she got to about 8 and then started struggling socially and mentally.
it got to the point in school where her anxiety was so bad she ended up in hospital in the middle of her gcse after a suicide attempt. She hated change, had no social life, felt like she didn’t fit, had many intense obsessions (still does)
finally diagnosed at 15. She’s 20 now and struggles hugely. She masks a lot and her meltdowns take the form of going very still and quiet for hours, days and lying in bed