Few popular diets suggest that you can eat more carbohydrates. There is a huge gap between healthy foods and foods that play an important role in weight loss. Foods are digested differently and almost any food can be part of a weight-loss diet.
The biggest threat to carbohydrates is those who say their bodies "hate carbohydrates. These people who seem to be allergic to carbohydrates really are. Gluten sensitivity, food allergies make food like grains and bread an enemy.
Even if you don't have any of the problems mentioned above, it can happen that when you eat carbohydrates you may feel more bloated. Especially when the carbohydrates come from sugar, sweets or processed food.
When you go back to eating carbohydrates after a period of not eating them, many things happen in your body. At the most basic level, the depleted carbohydrate tank is replenished and lost water is recovered. The end result is to think of carbohydrates as "bad". Which inevitably starts a fight to find out what you can eat without being miserable.