Does this sound lile early signs of autism

My son is 15 months old

He is very ignorant

He's taken 10 steps but now refuses to walk at all

He had bad tantrums and screams so loud like he's hurt himself

He won't touch anything slimey or wet like pasta or fruit

He doesn't play with other children

He doesn't wave bye bye

Can babble, mama, Dada but not sure if he knows who mama and Dada is

Refuses kisses and cuddles

Doesn't point things out

He can do happy and you know it and claps his hands

He will watch TV and dance along to the songs by bopping his bum

He gets excited if we pretend to chase him

He'll make eye contact now and then

He always flaps his hands when he's excited or upset

My little brother is autistic so I do think its possible my son has it to, I know all autistic children are different but does it sound possible?