Hunger is actually a good sign. Loss of appetite is a bad one. When I was severly sick, or whenever I would go into intense detox mode like during a juice fast, my appetite would completly vanish.
A 10 days juice fast is still beneficial. It is important to break it properly though. What are you juicing during your fast? How much juice do you consume?
You could go on a liquid diet, drinking smoothies as your main meals and still do some juicing in between. Kefir based smoothies with plenty of greens can be a powerful detox too and help you heal your issues without the hunger you experiment on a juice fast.