Hey, Lately I've Been Experiencing Pretty Heavy Things. For Starters

hey, lately i've been experiencing pretty heavy things. for starters im a 17 year old boy, i have constant headaches, light headedness, head rushes, and for the past few days on and off fevers getting up to almost 102 degrees, and along with this, nosebleeds. just less than an hour ago, i was watching tv on the couch when my nose began to gush blood. im very worried.