I think it is completely normal to question your perceptions. Every once in a while our judgment may be blinded by something out of our control and that may cause cloudy judgment. Being uncomfortable about something does not mean you are delusional. Finding ways to discern fact from fiction and what is rational from what is irrational can sometimes take practice. Again and again, I remind myself of the facts. I think fear is the most common cause of delusion. If I am uncomfortable about something, I make a small adjustments to work towards a better understanding of my fear. Also, I think it is not a waste of time to talk these questions over with your therapist, and that is exactly why most people see a therapist. Fear is probably the most common cause of irrational thinking.