Think about your everyday life -- how taking a run, or walking your dog on the beach, or socializing with friends are just part of a normal day. How you share daily responsibilities with others. How you set long-term goals and arrange your life to pursue them.
Then imagine never knowing each morning whether today you'll be able to do those things you take for granted, or if today you'll be unable to get out of bed. Today it might be vertigo and stomach pain. A couple of days ago, it could have been crippling fatigue and muscle pain, or almost fainting. To...
Also watch: Common Causes of Hip Pain