I had my tonsils removed in 1996, I was 34 yeas old when they were removed. I had serious problems with strep throat and tonsillitis. I didn't have a firm DX of lupus then, I didn't get my offical DX in 2001. I have to say the pain is pretty intense aafter taking them out. I also had a difficult time eating, even if it was ice cream. My voice sounded different the first few weeks. I think it took me 6 weeks to fully recover, where I could eat anything.
In my case, things may have changed, but I was only allowed to eat cold or room temperature food. I wasn't allowed any hot food, tea, coffee, etc for 3 weeks. I also wasn't allowed red popsicles or red colored beverages. This is done so that you don't mistake it for bleeding.
I was very tired afterwards and it lasted about 4 weeks. I'm certain if I was on steroids at that time and they had given the increased dose before surgical procedures I would have felt better than I did. I'd talk to your Rheumy about the possibility that they may remove your tonsils, he should be able to tell you what you need to do to avoid a flare.
dx fibro, SLE, glaucoma, cateracts, bells palsy, depression, migraine headaches, gastreopaersis, chronic anemia, RA,MDS (Blood Cancer). Tons of meds.