I had LASIK 7 weeks ago for bad astigmatism. My vision is worse now. Dr says I have to wait a year to correct?

I had LASIK 7 weeks ago for bad astigmatism. I went to a very experienced and reputable Doctor. My vision is worse now. Reading is a huge problem now which wasn't prior to surgery. I work as a RN injector and have to be able to see fine detail. Doctor wants to wait a whole year to correct! I'm getting terrible headaches which I assume are from eye strain. He won't give me a script for glasses because he says my vision might change. What do I do? I'm struggling to see at work, headaches, Help!!