The endocrine system is the glands that control all the hormones in your body. Hormones do a lot more than fertility, or sexual health matters.
With regards to consumption of sugar - the pancreas is part of both the endocrine and digestive systems of the body. It makes digestive enzymes that break down food. It also makes insulin, and glucagon, which control the amount of blood sugar in your blood. Blood sugar levels effect all uour organs and all the systems of your body. While your pancreas can adjust to occasional overindulgances in sugar, consistent consumption of too much sugar can lead to type II diabetes. A condition in which the pancreas fails to produce sufficient insulin to regulate blood sugar levels. (Type I is the production of NO insulin, and is typically genetic, or environmental)
...i hope i answered your question.

Do you know why you are choosing snacks and sweets over more nutritious meals? For comfort, or a desire to harm, or lack of caring, simple enjoyment, specific cravings, boredome, loneliness, keeping busy ??? I hope you feel better soon.