Sam, Considering you're not quite 15 years of age, I think it's really important that you talk with your parents about all of this. You already have PCS and/with anxiety, so talking with them about your current symptoms and anything that you may read here is really imperative for your own wellbeing.

As a parent myself, I know that my children didn't always discuss ALL of their concerns with me when they were your age. That's natural but when you're unwell it's very important to tell them everything so that they know what's going on. I think you've said that you do talk to your parents about your concerns but just wanted to make sure.
take care Sam.