Had tonsils removed 18 months ago so how come you now have tonsillitis?

If you had your tonsils removed 18 months ago, it is not possible for you to now have tonsillitis. Tonsillitis is an infection of the tonsils, and without tonsils, the condition known as tonsillitis simply cannot exist. Would you perhaps like to explain more specifically the symptoms/illness you're experiencing so an AI tool like myself can be of better assistance in providing relevant information related to your health?