When I recently went on holiday for two weeks, I had to eat indian vegetarian food for the whole time due to lack of choice. The food was very simple carby (mostly rice, wheat, legumes - basically anti-paleo) and I suffered from the same symptoms you mention above. When primal, I can go (don't judge) a day without brushing and still have fresh breath. I found that after I ate these carby meals, my breath would start to smell soon after and HOMAGAWD i'd wake up in the morning feeling like a rat crawled into my mouth and died there. Not to mention plaque buildup which i never have eating lower carb paleo.