Tripped over my bed and the bones behind my big toe were throbbing and sore to touch and there a big bruise but it doesn't hurt to walk is it broken?

Sounds likt it: Only an x-ray will tell for sure. How can it be sore to touch but not painful when you put your weight on it? Go get an x-ray.

Possibly: It could be broken, sprained or contused. The myth that one can't walk on a broken bone is just that;a myth. Go get an -ray, rest, ice, elevate, compress and take otc advil, tylenol (acetaminophen) etc until you are properly diagnosed and treated.