Hi and welcome to the boards. I am so sorry your going through this but hopefully with your persistance the docs will order up the right testing. I am caring for my hubby who has ms. He had minor OCD and still does on occasion but nothing serious.
My mom on the other hand just had brain surgery and I, like you, have no idea how to deal with it. Brain surgery and the outcome was and is not in my knowledge base so to speak. Anyway, I am learning and slowly grasping what we can do to help mom as well as encourage her to seek a neuropsych eval as well. She has anger outbursts, anxiety, memory issues and tremors when upset.
Come back to vent or whatever you need. We get it.