Hi! I Am A 22 Years Old Man. I Am

Hi! I am a 22 years old man. I am currently a student and i started feeling something is wrong with earlier of this year. And recently i felt weak ,less stronger and sometimes mild headache. Sometimes, i experience mild speech diffuclties that never happen before. And some times short term memory loss. For example, forget where i place my keys 1 min ago and all. Im actually and athlete and i play sports at least 4 times a week. Recent feeling weakness is affecting my performance greatly and i need help.