I'm not eating more or exercising less. i'm not pregnant and i have no thyroid problem i know of-why am i gaining weight?

Weight gain: Couple different issues possible. One is that you have something like metabolic syndrome or early diabetes. The more likely issue is the type of food you are eating, which sometimes is as if not more important than the volume. Most of us in the USA also tend to have dinner as our biggest meal, unlike our European friends who eat light for dinner and hence have fewer issues with obesity

Weight gain: Hi, balancing weight is a very challenging issue in our country, I believe you that you don't eat more but the question is how much calorie and what kind of food you are eating? What kind of exercise do you do? Your best bet is to keep track of your food and exercise. Myfitnesspal app is free, give it a try. Stay safe and healthy.