This similar thing happened to my son. When he was 21/2 he got croup and thats when it was noticed that his lymph nodes in the bakc of his was larger than what they should have been. Although I am in the healthcare field, I was still unclear about what the doctor meant by that. We went to his ped. and she said that his tonsils were very large and they were just about touching eachother. so we went to the ENT doc. she gave a med that did nothing for the tonsils. we went back and tried another med that did absolutely nothing either. Then she decided to go on and remove his tonils and adnoids. That was probably the best that could have happened. The first night he had them removed that was the first time he slept a full 8 hours without getting up. It turns out that he had an underlined infection and thats why the medicin wasn't working. Her exact word were "his tonsils were mushy" and thats why. Its been wonderful every since.
Also although you have not seen the ENT doc yet, if they say its best to remove the tonsils I wouls. Its better to take care of it now. It is risks for complications as with any surgery, but its better to get it over with now than to let it go on any longer. Children tend to recover faster with this surgery than adults. Its a quick procedure about a hour and a half, and its done. Good luck hope this helps.