Im 15 years old and constantly i find things wrong with me, i sometimes get this pressure behind my eyes realy badly or sometimes its really mild, i also feel like i have a constant tightness feeling in my forehead likes it pressure and this happens almost everyday for the whole day i get random ear aches or wierd headaches that are like on the top of my head (where i also feel this pressure). most of the time i cant breathe through my nose especially at night as its very congested. i get chest pains where it feels like i cant breathe cause something there is stopping me so i have to breathe deeply . and finally i get random sharp pains in my legs and thighs and my joints go weak often.
im really bothered at this as in school its stopping me from being happy as these things are constantly stopping me concentrating etc . please help me and give me some advice please.