Hi, my name is Kristina, i am 16 years old, and i have been getting really sick ever since i was in about 8th grade, i am not at the end of my 10th grade year, my parents told me it was all in my head becuase i constanly felt sick, my symptoms have gotten worse, i have even began throwing up my stomach accid and also blood, that stoped like three months ago... but now i have all of these symtoms, they just come and go when ever its sometimes causal and sometimes sudden...
-Swollen glands
-have to pee every like fifteen min.
-Very tender breasts( just a touch hurts)
-always tired no matter how much sleep i get.
-eyes hurt and sometimes messed up vision(things go blurred)
-sore joints all over like i am haveing horibble cramps or growing pains
-right side hurts lower in my abdominal area. sometimes middle, or all over but never just the left side alone.(stabbing like pain)(have alot of bowel movements too)
-When i get my period it is extremely heavy and i get really sick.
-Headaches
-feel like throwing up after i eat, nothing really stays down and if it does it does not digest properly(sorry my spelling is very bad)
-Fever gets really high then low then normal the happens all over again.
-My back kills, and my hip joints just resently started to hurt like to the point were i cant walk normal, my bones seem like there just deteriaten away or something like there grinding.
-and the last one that i am going to list is feeling bloated and gainging weight.
And no i am not preg. yes i have had sex, no i dont have an std... already got checked had sex with one guy still with him, we were eachothers first... he has been checked too.
can someone tell me anything about my symtoms cause the doctors i went to said nothing was wrong, please help i am in alot of pain and my boyfriend is also getting very stressed bout this he is very worried about me.

Thank you for your time,please if anyone can help i would appreciate that, thank you so much!

-Kristina.