Apart from the formation of white pus pockets on the tonsils, a person having tonsillitis may suffer symptoms, like fever, chills, bad breath, tiredness, weakness, muscle aches, earache, pain or discomfort when swallowing, and swollen glands in the neck. The tonsils appear to be inflamed, swollen, and red when the mouth is opened wide. The person may have extreme difficulty while swallowing food and even saliva, and may become very irritable and lethargic.