Yang deficiency leads to tinnitus, and yin deficiency leads to sweating in the palms. I think you probably have yang deficiency, but you'd better check your pulse with Chinese medicine.
This disease can only be cured by Chinese medicine, which is not slow. Now your only way out is: 1, don't take this matter too seriously, if you have a heart fire, it will be even worse if you hurt your spleen and stomach. 2, eat "Jingui Shenqi Pill", it will work. If there is a fire, you can't eat it. You'd better not eat it now. Your heart is too anxious, and there is fire, which is not good. It is a good rest and fitness to have a pedicure and full body massage before the exam.
My suggestion is: eat some watermelon and the fire will be gone; Go for a massage at the right time. Medicine tonic is better than food tonic, and food tonic is better than god tonic. Your heart is too anxious, which is very unfavorable. It is better to let go of this burden than anything else.
Pay attention to the high-sugar supplement during the exam, and the brain only consumes glucose.