Hi Rose,
It sounds like you are feeling overwhelmed by things at the moment. When I am feeling overwhelmed, my senses become more sensitive; with sounds seeming louder, smells stronger, & lights brighter. I want to hide in a dark comfortable place like in my bed, under a thick doona (even if it is too hot).
Talking with a psychologist can be challenging. They can want you to talk about things that make you feel uncomfortable, or challenge the way you think about things. I would guess that you felt you weren't up to challenging conversations, or perhaps any conversation at all. I have had some psychologists who have understood when I am overwhelmed and am wanting lighthearted conversation rather than more challenging topics. But some don't adjust to what you need, and try to push through with challenging conversation. I guess you didn't feel up to talking, especially if you thought it might be challenging. If it was face-to-face, getting there and being around other people may also have been issues. I hope you have been able to reschedule it soon.
Meanwhile - look after yourself. Do what soothes you. Curl up in bed & sleep for a bit. Then take small steps of things that soothe you - a drink, a bite to eat, a shower, somethings you enjoy doing. Be gentle on yourself & don't worry about the things that are too much to handle at the moment.