Such sign can be noticed soon due to less eating, skipping meals, excess exercise and drinking more water. When necessary nutrition isn’t provided to the body, the patient may develop such problems.

Diet pills have become common, quick fix drugs for weight loss. Some people, instead of working out, survive on diet pills, skipping meals for losing weight. However, side effects of diet pills are many which can be seen in as time goes on.

Some people avoid going to social places like malls, restaurants, dinner invitations where food is served. This is a common problem with people who plan to go on diet or skip meals. They avoid such place thinking that their control may not be successful and they might end up eating more than desired.

Many people opt for dieting but end up eating more than their normal diet. Some people also try to skip meals or control the hunger thinking that this will lessen their calorie intake. However, these actions can affect your health in a bad way leading to fatigue or dizziness.

Some people have the tendency to wear baggy or loose clothes thinking that their ‘fat’ body cannot be seen. If this symptom originates from an eating disorder, then it is more of a psychological disorder. The patient with such symptoms always feels like hiding the body so that nobody comes to know of their excess weight.

People with eating disorders experience dramatic weight loss. If the BMI is less than 18.5, the person is considered as underweight. People with such a disorder and with such BMI rates are considered to be suffering from an eating disorder. According to doctors, weight loss must be related to maintenance of optimum body weight. 

Some people drink excess water before dinner or lunch so that they can eat less. Due to this, the nutrition intake of the body is affected in a negative way. Some people also go to the washroom and vomit out whatever they eat, thinking that this will not increase the calorie intake of the body.

Many people do not exercise regularly and face many health problems. However, some people also face problem because of excess exercising. Performing regular exercise is a good thing. However, compulsive exercise can be one symptom of eating disorders. It is simply another source for people to burn off their calories in a faster way. People with eating disorders go twice or thrice a day for workout and perform the exercise at least 1 hour daily thinking that it can affect their weight. It is a psychological disorder, where a person is bound to exercise in an effort to burn excess calories and fat reserves. However, it has many negative effects on their health.

Depression is one common problem among the patients with eating disorders. Such a symptom is seen because overweight or obese people feel chronically depressed with the way they look. Due to this depression, they try to skip meals or control their hunger. Sometimes, such people also feel disgusted with themselves, worsening their depression. It can affect their whole body physiology and the way they sleep and eat. It can also affect the way they handle real life issues and decisions.