Hello, I just finished my 3rd round of Keytruda for Non-Hodgkin Lymphoma. I cant really answer your question but I do know when I started having stiff and sore muscles and joints the nurse said it can cause autoimmune type responses. I wonder if that is what you are experiencing?
Can I ask, how many rounds you did of the keytruda and if you did any chemo following? I have a PET scan coming up and my Dr mention chemo even if it is clear. I feel so good and all of my symptoms are gone, I am terrified of chemo making me sick .