Sensory issues.. 18 month old?

Does anyone have a child who his signs of autism, or sensory overload? Or something along these lines that can help me.

My 18 month old doesnt talk, will only apple mama and dada. She doesnt even try to say anymore. She does t point at anything she wants, just stands there shouting or screaming.

She constantly wants shoes on her feet, or a coat on to walk round the house..

Whenever she wants me to put shoes on, shell just constantly lift her leg leg up, and I'll tap the right but still constantly the left (even if it already has the shoe on!)

To go to sleep she has to have a blanket on..

I have to keep any long cords and stuff out the way otherwise shell put it round her neck, even the big long hair bands that go round top of head shell put round her neck, lead to Hoover, shoe lace..

Can anyone help or guide me on what I can do to help?