Is this adhd or have I listened to too much true crime?

My husband works away and often sells things on marketplace but will message me that some random person is coming over and I utterly HATE it. The thought of having someone in my space that I have to interact with alone drives me nuts. Today he wanted me to sell a heap of heavy car parts that I can’t lift as I recently had surgery. So he wants me to stand in the garage and make sure the guy doesn’t take anything else (as if I’d know 🤷🏼‍♀️). I said no but it’s worth so much money now I’m spiralling in guilt and feel really awful. I don’t know if it’s the fear of being assaulted or the anxiety of interacting and watching this person like a hawk that gives me the most heinous anxiety?! Which is ridiculous because normal people wouldn’t be as anxious about the interaction as being assaulted…or would normal people not even think about being assaulted? Would anyone feel the same?