Does anyone else fear thinking the wrong thing and getting ill?

I fear that if I think the wrong thing, that I will get ill, or something else.
Something in my head made the connection that everything is manifested and that means that everything is in my control.

My fear of manifesting comes on only sometimes, not just for illnesses, where I start really feeling like my thoughts create reality. As someone with intrusive thoughts, I start thinking everything that I don’t want to manifest.
I have other symptoms and this is not the worst one,