Why did i gain 70 pounds?

[[Ma...]]

My diet exists out of 

Breakfast , fresh fruits

lunch: chicken feta cucumber or chicken tomatoe gluten free crackers

 

dinner : rice chicken veggies or meat veggies 

in between I eat sometimes some fruit 

sometimes something else. 
 

never sugar or shit

 

i gained a lot I am extremely fat 

I never was in my life before. 
corrisol levels were measured to rule out stuff

They were fine. 
my thyroid works a little bit too fast, at least NOT slow. 
what the heck is going on?

 

i gain like 7 pounds every month and i don’t stop gaining weight