My son is a wonderful boy, he turned 3 in January and recently I've been having some concerns that he may be on the spectrum. I've googled signs probably not the best idea but i wanted to see if his behaviour was linked to autism. My son screams at every loud noise there is, could be anything from a fire alarm to a motorbike riding past, when we go to a park he doesn't interact with other children much and impart from slides its very hard to get him focused on a particular object or thing, however, if it's something that he likes and enjoys he will be repetitive all the rest of the time he just wanders in his own little world, he will only eat certain foods and won't touch hardly anything that isn't of a dry texture impart from yoghurt, he does speak and is quite good with words however getting him to have a conversation with you is very yes and no question based, when it comes to hair brushing, toenail clipping he won't let me touch him but he will give you cuddles and kisses and likes to sit with you for a small period of time.
Am i just being a paranoid parent thinking there might be something there when actually there's not or should I take him to the doctors and start the ball rolling for a referral. Please any advice would help or if im completely wrong about it being linked to autism, what could it be? If anything.