Having your spine properly checked and in correct alignment should be a priority if you want to get back (pun intended) to being happy and healthy. Rebalancing your joints and muscles will give you the perfect foundation for your body to thrive.
Positive mindset is the most under-rated concept in health care. The way you think has a significant physiological effect on the body. Positive thoughts limit stress on the body, decreasing the release of cortisol (the stress hormone) while increasing the release of dopamine and serotonin (the feel-good hormones).