Weight…:(

Hello. I have 30 weeks. I gained 16 kg. the doctor said that this is a lot and I should eat less food and sweets. but before I got pregnant I didn’t eat sugar at all, and now if I don’t eat it I feel bad. dizzy and legs become wadded. the doctor ran into me because of the coffee too. I only drink coffee in the morning 2 cups. said it was bad. so I gave up coffee and sweets, only fruits and normal food. Now it's the third day for me, and I feel bad both physically and mentally. and I also can't go in for sports because I have problems with the pelvis due to pregnancy. the doctors can't do anything until I give birth. plus I quit smoking. The husband says that it doesn't matter what the doctor says, then we'll figure it out. How much weight did you gain?