Is this okay for my age [14] (Details included)?

Yes it is actually..its normal.. Im 5'6 and weigh like 110lbs [im a girl (14 yrs) btw] and i don't have any eating disorders or anything but i keep losing and gaining weight because i have a cyst and its effecting everything..everyone always tells me i need to gain Weight and right now i wish i was like 120 lbs..or somewhere around there..don't try to lose weight or change anything about yourself..your fine the way you are :)