If you don't have much of an appetite, you'll probably do better if you nibble on small snacks throughout the day. If it's a time issue then maybe you need to increase the size of the meals you are already eating. It doesn't matter if you eat extra meals or increase the size of the meals you usually eat, that's up to you, but don't fall into a junk food trap. Choose weight-gaining foods that are both energy-dense and nutrient-dense. Need some ideas? Take a look at these 11 easy tips that will help you gain weight.
Fix it: If you suspect you are gaining weight that you can't attribute to your eating habits, medications, or lack of exercise, a few tests—including a blood test and urinalysis, to get an accurate check of your body's cortisol levels, will give your doctor the first clues to this condition. If the levels are deemed excessively high, then your doctor will order further tests, like a CT scan of your pituitary and adrenal glands, to determine if such a tumor exists. If the tumor is confirmed, doctors will likely perform surgery to remove the tumor (and possibly the affected gland), followed by a course of steroids to help regulate the remaining gland. (Could you have a thyroid problem? Find out here .)