This can be for many reasons. But it always starts with the wrong way of life. Just start eating right (raw plant food), get rid of all your addictions, go to bed at 10-11 pm (this is important!), use different food supplements, but only organic, such as wheat germ juice, turmeric with black pepper, organic vitamins and minerals, etc.

Any health problems (including psychological, etc.) are solved if we apply comprehensive measures to improve the body's health.