Worried about having a brain tumor!!!?

Ive been extremely worried about having a brain tumor lately!! I have all sorts of symtpoms but I think they're all from the Yasmin pills i just stopped taking. Plus I started taking effexor about a month ago and im weaning that VERY slowly now. My doctor ordered a CT scan to put my mind at ease but the wait for the appointment is taking sooo long. Im hoping they will call any day now its been around 16 days since the doctor sent the referal. Anyway im just going CRAZY and i cant enjoy anything right now because im too busy being worried about a tumor. I just need someone to talk to until this is all over! Please help me out. PS im 19 years old.