@lisalucier- Good morning @edb- How are you holding up? Swollen lymph nodes are common with certain cancers and esp. lung cancer. They could indicate trouble or are just reacting to what is going on around them, or an infection I have a couple of swollen nodes. They indicate that they need a look at by a doctor! I have only had chemo and during that time everything seemed to be off, my blood count, my energy, my appetite.
This article might help you understand more:
https://www.curetoday.com/publications/cure/2016/melanoma-2016-2/in-watching-for-the-side-effects-of-immunotherapy-you-are-your-own-first-line-of-defense

Here's more: https://www.keytruda.com/side-effects/
https://www.curetoday.com/publications/cure/2016/melanoma-2016-2/in-watching-for-the-side-effects-of-immunotherapy-you-are-your-own-first-line-of-defense

How are you holding up? There is a lot of good news with her test results!