You should tell your pdoc tomorrow. He/She has most definitely dealt with others who have struggled with intrusive thoughts, so they won't think you're crazy.

Also, trying to push the thoughts away is most likely going to just make them come back stronger. Think about it, if I tell you "DON'T think about a red elephant"...you're most likely going to think about one. However, I know how hard it is not to push them away in the beginning. Just do what you need to do for now, and your pdoc should be able to help you. You might want to ask if therapy will help in this case. I hope you'll keep us updated on how you're doing!