Is it possible to have Autism & barely noticing?

Im 25 years old and I think I may have Autism.. I was never diagnosed but I always felt different. I had a hard time making friends growing up and I still do. I'm not a very good conversationalist & I do stumble over my words sometimes. I did have speech problem when I was in elementary but I guess my parents never felt the need to check if I had autism.
Is it possible to have Autism & barely noticing?
Post Opinion