I hope it works out. They say the second dose can be difficult for those who already had the disease.
They both had the disease, so this may be normal, but as I understand the vaccine, it alters the DNA. I’m sure much more research needs to be done, but with the way things are going, we may never know for sure.
At any rate, I’m sorry she’s going though this, along with the other stuff she has to deal with.