Strep is only one form of tonsillitis and it generally requires treatment. You usually have to take antibiotics for it because strep is bacterial. It can turn into something much more serious, including kidney disease. Mostly kids get strep but adults can get it, too.
Tonsillitis can also be viral which is the kind I get. So it does not respond to anti-b drugs and will go away on its own. There are many viruses that can end up inflaming your tonsils.
Symptom-wise, tonsillitis resembles strep and may in fact be strep, but if it goes away by itself it likely wasn’t bacterial. It also resembles the flu because you don’t get cold symptoms. Just a little bit and not all runny and sneezy.
Did I catch this at school? Possibly. I noticed it starting yesterday but I pushed it into the back of my mind. Then I woke up and knew I couldn’t go in. I feel terrible about canceling.
Otherwise, I’m not sure why it keeps coming back. It’s annoying.