I feel the same way. I don't thing it's a flaw, but it's an ingrained fear. By the way, you are doing the same thing I do, namely, overthink things and (for you, probably, for me) do nothing about it. I think we need to stop thinking and put ourselves out there, exposing our fears and vulnerabilities to be around people and to live our lives. No matter how gifted you are in your alone time, it doesn't compensate the need for socializing. I think this is it.