hello your test came back negative so you are safe. your tonsillitis is the throat problem due to infection in the back of your throat..this can cause a fever and loss of appetite for you and treated with antibiotics. i was 37 when i had mine removed but only after re-curring bouts..they do serve a purpose and prevent germs entering your system, now when i get a cold im always certain to get chest infection. you,ll be fine don,t worry they will settle down.
hope this helps you