I'm really sorry @TonsilTwister I feel very bad about telling you this, as it could influence you, if only a little bit, and my commonsense tells me to not pass my - probably ‐ very silly fears on to someone else, but here goes (of course you can decide to just not read this, which would - probably again - be the most sensible thing to do):
Many years ago, my now adult, heathy, son, suffered from recurring tonsillitis, he would have been about 9 or 10 years old at the time. So after a referral to a paediatric surgeon, he was put on the waiting list to have his tonsils out. Of course, quite normally I am sure, I was very concerned about him having an operation, especially as it was not an absolutely necessary operation for him to have, but I initially agreed to it.
Then suddenly I started reading articles about operations where the anaesthetic either hadn't worked, or the patient had died suddenly on the operating table because a particular anaesthetic had had a bad side effect - this was in the time before home computers were a thing, and way before mobile phones and the internet - so I hadn't gone searching for anything to do with any medical issues, I just read my normal newspaper, and normal magazines, and those articles were there. I then had an absolutely awful nightmare, where my son died under the anaesthetic during his tonsillectomy.
Now the most likely reason for my nightmare was that I had already been really worried about the operation, and then I read those articles, so it would probably have been surprising if it hadn't given me any nightmares. Anyway, that was the last straw for me (and the poor camel), so I cancelled the operation, and explained to my son's GP why.
About a week later, I got a letter from the Consultant Surgeon, he told me that it was a very straightforward operation, and that he had never lost a patient yet, and that it would be much better for my son to have the operation. But I felt so certain that he should not have that operation that I never changed my mind about it.
My son never had another bout of tonsillitis.
He did, however have to have his appendix out a few years later, and the only thing I was worried about then, was the possibility of his appendix bursting, and killing him before he could have the emergency operation! He had the operation, it went very well, and he recovered from it quickly.
So the only thing that I can advice you about OP, - and as I said before, it might be bad advice - is that you try to tune into your own gut, into your own instinct. In the meantime, I wish you so much luck - and the Guidance of a Brilliant Guardian Angel - in making the right decision for your son. xxx