UNDERweight, HIGH cholesterol??

i just got my blood checked; my doctor informed me that i have high cholesterol, coupled with a light case of anemia. the anemia part- that’s understandable, because i don’t tend to eat meat, but i have no idea why i have a high cholesterol, since i am about 15 pounds underweight. my cholesterol was about 225 mg/dl, and i’m only 16. i don’t understand how this can happen; i never eat food high in fat. i do tend to eat a lot of sweets- does that correlate to my high cholesterol??i don’t think it’s genetic, because my parents have unusually low cholesterols.