Going in to get my hopefully final tests done today. Really scared and anxious because the test itself will make me dizzy which is my biggest issue right now and what I've been trying to get over. Also I can't eat or drink anything including water until my appointment at 1:45. It is now 10:43 and I am feeling like I am dying of thirst when I probably really am not. Nervous I will get dizzy and need to drink water and then not be able to do my test. I am underweight so I constantly eat usually but for these 4 hours I can't and because I'm thinking about it it is making it worse. Any tips on how to get through this?