 [ Symptoms ] have lump on gums that doesnt go away stays full of pus stays red and swollen can be painful what is this [ Disease ] typically bowel changes from introducing a healthy diet result in gas and some bloating as fiber is increased this typically goes away after the body adjusts to more fiber i am not aware of yellow mucous being a side effect of diet changes mucous or blood in the stools should always be checked out by a healthcare provider so you are doing the right thing by making an appointment good luck for more on normal bowel movements see this webmd article