I failed my driving exam 3 times, now going to try it for the 4 time. Before the first try I was nerveous but it wasn't bad, and ever sicne It's just horrible. I have the exam in 2 days, and already i have stomach problems, have to go to the toilet several times a day, my stomach hurts all day, barely can eat anything, even my lower back hurts and I'M moody, and I'm not even thinking about it most of the time.. Even my sleeping is messed up, waking up every 3 hours and have a hard tiem falling back.   
I also have Acid Reflux which gets severely worse during these times.. And after the exam , or while I'm driving with my instructor the pain gets better and it's almost gone. Can anyone help me, or suggest me something for this? Like this is unbearable.. I failed 3 times already cause of stress and It hurts me a lot cause I drive very well, even my instructor praised me a lot and felt sorry for me after the failures..