One tonsil enlarged - definitely cancer??

Hi everyone,

First of all I've tried to make this as short as possible and I know only a doctor can tell us for certain, but I really want some reassurance that it might not be cancer so I don't completely breakdown everday over the next two weeks. 

My husband has had issues with a painless lump in his throat since before we met (nearly six years ago). He said it gets better and worse sometimes, but never completely goes away. Twice it has become so large it effected his breathing and he went to the doctor, and both times he was prescribed some antibiotics that made things better but it would always come back. He was also told one tonsil was larger than the other, but that it wasn't worrying. 

Fast forward to now. He has had some issues since we've been together with the lump making him cough at lot beacuse it's irritating his throat (his words!), but in general it has been pushed to the back of my mind. However, a few months ago I noticed my husband was sort of wheezing when he breathed out (breathing in is fine, as is eating) and I have been begging him to go to the doctor about it. He was relutant at first becuase he siad it had been worse than this before, but he finally agreed and we went to the doctor yesterday. 

The doctor commented that, again, one tonsil was much larger than the other and he wasn't sure what it was. He didn't think it was anything to be worried about because of how long he had had it and he wasn't really in an 'at risk' group (he's in his early 40's, no family history and doesn't smoke or drink heavily), but he gave him an urgent referral to an ENT. I panicked when I heard that, but my husband said it wasn't because he was overly concernced and it was just so we wouldn't have to wait months to be seen. He should have a throat scan (? sorry, don't know the correct word!) within two weeks. 

I am so so scared. I have had awful issues with health anxiety in the past and would use Dr Google for everything (I know I shouldn't) - I'm pretty sure I ended up diagnosing myself and my husband with every type of cancer out there! It got really bad and I was barely sleeping so I completely banned myself from Googling anything, which made things a lot better. However, last night I couldn't help myself and every single post about one tonsil being englarged (without pain) said it was tonsil cancer.

I can usualy talk myself out of panicking, but at the moment my conversations are just going: 

"The doctor said it was almost certainly nothing" - "But then why give an urgernt referral" - "To save us waiting months to be seen, he was a great doctor" - "But one tonsil larger than the other without pain is always cancer, he was just being nice and trying to stop you worrying becuase he knows in two weeks he'll be diagnosed with cancer" - "Even if it is cancer it can be treated, remember all the stories online about people who got better" - "Well it's been over six years, it's clearly going to have spread everywhere by now" - ect...

I'm sorry for going on so much. I know only the doctors can tell us for certain what it is, but does it HAVE to be cancer? I can't find anything else other than cancer for his symptoms and I just can't stop worrying. Is there anything else this could be? If it's cancer we'll deal with it, but these next two weeks are going to destory me if I don't have a tiny ray of hope that it might be something less serious. 

Thanks for reading :(