How to deal with health anxiety

Anybody have any advice on how to deal with health anxiety concerning your child’s health? I have always been anxious about my own health but now that I have a baby I worry about him too. I know parents will always worry about their children but I find myself fixating on a certain things (like autism, infectious diseases, his hearing, etc.) for a few days and then I move on to something else. And then I Google things which makes it even worse but it is like I can’t resist Googling my worries. I get myself so worked up and convinced that something is wrong and then he does something or something changes that makes me think it is all okay. I know I am being completely irrational in my worries but I can’t seem to get past it. I don’t want him to grow up worrying like I do and I just want to enjoy my baby without worrying about everything he does or doesn’t do. Anybody else feel the same way and find something that helped you? Sometimes I think I may need therapy but I don’t know.