Cancer runs in my family . i went to the er for numbness in the middle of my spine would randomly would get worse. i also had no energy what so ever . i was confused if i was feeling this way to do an illness or because i stopped taking xanex 2mg?

It is not feasible to provide an opinion without additional history, physical examination may be some tests. It would be prudent to see your doctor to see if you may be depressed. Depression is treatable. Counter-intuitive as it may seem, exercise may help. Start with low intensity exercise such as walking and gradually increase the intensity as tolerated. Drink more water. Wish you good health!