I Am 20 Year Boy My Height Is 5'7.and Weight

I am 20 year boy my height is 5'7.and weight 54 kg..i am doing bba..I have very day class but when I go to CLS I feel tierd & sleepy.. I have gastric problem also..after doing CLS started headache.. I have hair fall problem also ..my forhead is balnk.very day up to 50 hair fallen.and my hair is dry and frezy.I have dandruff problem also..I am very frasted what I do??