Workplace bullying is rife. I can't help with the legal side, but I can help you cope with the pervasive negative influence such things can have on your self esteem and your sense of agency. I can help you map out how you want to respond to the situation, and work out how you can best take back your life.
The dangers of not taking enough vacation are described in this Business Week article.
Some of the effects of stress are listed in this article from the Mayo Clinic. The Workplace Bullying Institute is here.

I spent 20 years in international business, working at small start-ups and Fortune 500 companies, so I have insider knowledge of the corporate world and the pressures it can exert. I help professional clients with a variety of career goals, including better work-life balance, identifying limiting beliefs and other blocks to success, and working toward career change.