Umm...my weight is starting to get out of hand?

ok so i started out as a little chubby...then i lost weight...but way too much weight so i had to eat alot of calories...it took 8000 calories a day to make me gain like a pound a month! well now, i gained all my weight back, plus 50 more pounds and i feel starved now if i dont eat that much cuz ive been eating like this for over a year now and i cant cut back from 8000(where i am) to 1600(where they want me to be)...i feel soo sick, dizzy, and i actually get a fever or faint if i dont eat that much but instead of having about 30 pounds to gain, i have 70 pounds to lose!! nd im gaining weight rapidly....about 5 pounds a week even with intense exercise...my nutritionist, doctors, and therapists cant help and are getting worried about me!!! help me idk what to do!!! can u tell me wat to eat, like give me 3 meals and 3 snacks or tell me some low calorie filling foods...i really need filling foods so im not that starving!