Awaiting sons biopsy results - going crazy already

Hi, 

This is my first post and I was unsure whether to make an account or not, as I didn't want it to tempt fate. 
My 2 year old boy initially was seen back in September with a 3cm swollen lymph node, he had antibiotics and nothing changed,  it has grown and is over 5cm now. There is also another lump nearby now. He had a biopsy on it yesterday and some samples taken from his adenoids too. 
It has hardly been 24 hours since his procedure and I'm already a nervous wreck, I feel sick all the time. I know it's rare, but it happens. They're checking for lymphoma

He has a few symptoms which may be related or hopefully not related at all. 
The surgeon told me it would be at least 2 weeks, I just don't know how I'm going to do it. 
i am a single mother to my little boy, who was 2 in September and my daughter is nearly 10 months so i am distracted often but as soon as I have a second or it's quiet or something it's like I snap back to reality and remember what's going on. 

fingers crossed everything is ok and it's hopefully an infected lymph node or something easily treated. If it is the dreaded news we hear, I'm not sure how I'm going to cope. I know that sounds selfish but he is such a strong boy and I know he will take it all in his stride. I'm not strong, people may think I am but that's only because I have to be there for my children. 
it's hard. I hope you're all doing well, thank you for taking the time to read.