S.B.
I know exactly what you're going through. We have a 2 1/2 year old son that was diagnosed autistic when he was 20 months old. He was also not progressing normally. He wouldn't touch anything, so when he was only 12 months old they said he had tactile defensiveness and put him in therapy but as he got older and still wasn't talking or showing any progression in other areas where he should have been they started looking for other answers. We didn't know anything about autism and my husband is an RN. At 18 months we started researching the disorder after his speech therapist mentioned it. Then 2 months later we had an evaluation with specialists and they said he was autistic. He's been in therapy for a year and a half. If you live in the pensacola area there is a lot of groups and help you can get. The support is amazing! Good luck!
S.