As if being sick isn't enough trouble, physical illness can affect your mental health. Any illness even one that you dont know you have can make you vulnerable to depression. The body and the mind have a close connection, and physical problems often cause emotional distress and depression.
Often, depression is the first sign that another illness may be at play. Anytime you don't feel like yourself, particularly if this feeling lasts longer than two weeks, it's wise to let your doctor know.
