You've got thrush which simply means that you;ve got candida in your mouth. My son has had it while nursing -- he'd pass it to my nipples and I would pass it back to his mouth. I would change the toothbrush weekly and don't reuse glasses and other such items. It's also not a bad idea to wash all of your towels in a warm wash and add vinegar to the rinse cycle. I don't reuse hand towels at all because the warm moist environment is great for the yeast. I keep a stack of cheap washclothes on the sink for drying hands.