When I was a teenager I got a lot of tonsilitis, and one year I had six cases of it. Each time my tonsils would become enlarged, then decrease in size, but not completely. Later on, I had it a few more times, and they ended up at the point where they were permanently touching each other in their normal state. Byt the time I was 20 it was obstructing my breathing, particularly when i slept, so they came out.

So, ummm, the point of that is.... maybe keep an eye on them? Mention to your doc, see what they think.