I get at least 9 hours sleep a night but i am always tired the following day and my eyes are sticky and gluey and my back aches what's wrong?

Too much sleep: Nine hours is too much sleep which can make you feel fatigued. Switch to seven. For one of the two new hours per day you have, exercise by walking. In a few weeks, you will start to feel better and have more energy.

Medical condition: Symptoms are suggestive of a systemic or whole body disease that may involve dry eyes. A complete medical evaluation is indicated to determine the cause of these symptoms.