That is the verdict from yesterday. I've been given a script for antibiotics to take every six hours, and bought myself some painkillers.
Today, swallowing is still painful, but getting better as the day goes on. I may even be able to go to work tomorrow.
The doctor reminded me that tonsillitis is bacterial and so not contagious. This means that it is just a coincidence that my sister had it when I last visited her. It must be stress. She's just finished her last year of high school, and I'm about to finish my last year of uni. You know how it is.