Clearly you have a severe infestation of kitchen appliances.  This is a problem that is becoming increasingly common.  Undercooked food can contain things like microwave oven eggs or dishwasher larvae, and these can attach themselves to the stomach wall and eventually develop into fully grown adult appliances.  There are basically two ways of treating this.   You can either take a couple of  paracetamol then come back and see me in six weeks if it still hasn't cleared up.  Or, alternatively, I could write you a prescription for an extended warranty.