With number 3 (don’t have symptoms of 1 or 2), it’s best to remember that what they think is their business and not necessarily true, since it’s a subjective opinion. They might not even be thinking negatively of you at all, you could just be projecting that onto them for whatever reason. It might help to figure out what the root of these thoughts are - I suspect it could be related to a fear of some kind. I know I have similar thoughts, in my case they are fear based and I can work out where some of the fears come from.
Once you know what’s really behind the thought, you can start working on it.