Has anyone had lingering side effects from IVIG?

One year ago I was diagnosed with CDIP. In May, 2025 I received four daily IVIG infusions. I suffered side effects of headaches, vomiting, and low back pain. Subsequently it was determined that I was deficient in IGA which exacerbated the side effects. The headaches and vomiting eventually went away The back pain has improved but still lingers. Has anyone had that experience?