the difference between

WELL-BEING is the feeling of being comfortable, healthy and happy. It is a mental attitude. In another words, you feel physically, socially and mentally fit. Happy!
HEALTH is the general condition of your body and the extent to which it is free from illness or is able to resist illness. If you say you are in good health, it means you are free from disease or any illness. You can be in good health, but it does not mean you have a sense of well-being. One can be physically healthy, but one feels depressed all the time.

Health is a noun

Health is an important factor of well-being in our daily life.