My energy is always drained and i have an increase in my apetite and weight gain,are sliming pills safe to loose weight and boost my energy ?

No, they are not: There are a number of medical conditions which can produce the symptoms you are describing, such as pregnancy or thyroid disorders. Dietary supplements intended to increase your energy and promote weight loss will likely be an additional burden on your body. Sensible diet, exercise and a complete physical with your physician are much better alternatives.