Tried Propranolol for anxiety had hallucinations for 5 hours

For context I am prescribed 40mg of Vyvanse with a 10mg booster as needed. I developed PTSD in the last few months and after white knuckling I finally asked for something to help with my anxiety. My doctor prescribed me 10mg of propranolol to take as needed. I began with 10mg and tapered to 20mg and then 30mg. Two days ago I took 30mg for the first time and finally felt some relief… except I started seeing insects crawling on a wall they shouldn’t be? A piece of hair turned into a worm and began slithering towards me. I was convinced that my brain finally broke after this last traumatic event. Eventually the hallucinations stopped. Yesterday I once again took 30mg and was experiencing hypnagogic hallucinations of people. It was so disturbing but I slept well. I decided to google it today and was horrified by others accounts. I scheduled an appointment with my doctor but does anyone else have experience with this? Do they go away after some time? 20 mg did barely anything for me