(Learn how and when to remove these template messages) A budget is a quantitative expression of a financial plan for a defined period of time. It may include planned sales volumes and revenues, resource quantities, costs and expenses, assets, liabilities and cash flows. It expresses strategic plans of business units, organizations, activities or events in measurable terms.
The mouth could be feeling raw due to canker sores, Vit B deficiency or Vit C deficiency. It could also be fungal infection. It is difficult to comment beyond this at this stage without examining your mouth.
A rotten taste could be related to halitosis, also known as bad breath. Bad breath is an unpleasant condition that can be cause for embarrassment. If you don't brush and floss daily, particles of food remain in the mouth, collecting bacteria, which can cause bad breath. Food that collects between the teeth, on the tongue and around the gums can rot, leaving an unpleasant odor.