When I went to the dentist 3 weeks ago for a check up I had my teeth cleaned they were so sensitive I had to get her to stop. I went back today to have the roots of a wisdom tooth out. I'm the meantime I have been diagnosed with under active thyroid and started thyroxine which I told dentist before I sat down. She injected in my gum and roof of my mouth which wasn't enough so she injected a bit more. Still not good enough so I sat in the waiting room for 10 minutes. I got a fit of the giggles which was weird and embarrassing. I went back in but when she tried to remove the roots I had to stop her. Is this connected with my thyroid or something else.