Brad, your wife just had her transplant so there will be many changes happening. My BMT team at Mayo wanted to know ANY and all changes in my health big or small: aches, pains, fevers, etc... We’d joke about my getting a hangnail. So my recommendation, instead of guessing or letting this new symptom plague your anxiety in this uncertain time, call your wife’s BMT team! They are your go-to source for answers to any questions you might have...and peace of mind.
Feel free to private message me any time. I had posted a response to your first question a few weeks ago about surviving a bone marrow transplant for AML. I’m coming up on my one year anniversary the end of this month. It’s a wild journey but so worth the effort! All the best to your wife!