Dental Staph & Streptococcus biofilms after sepsis

Hey everyone in the group,
I've been dealing with this nightmare for over a year now and I'm hoping someone here can relate or give me some advice. Back in July 2024, I had a bad dental infection that turned into severe sepsis—cultures showed staph and strep. It hit my kidneys hard with bleeding and AKI, and within a week I was on dialysis. By day 8, I had respiratory failure and got life-flighted to ICU. They diagnosed me with stuff like acute respiratory failure with hypoxia, severe sepsis, dependence on dialysis (with notes about noncompliance, which I dispute), relapsing polychondritis (which I never had symptoms for like ear or nose cartilage issues), chronic pansinusitis, periapical abscesses, iron deficiency anemia, UTI, cellulitis in my mouth and orbit, lactic acidemia, hypokalemia, hyponatremia, and more. But polychondritis? That seems way off—I think it was a misdiagnosis.
They gave me amoxicillin-clavulanate at first, and I felt like I was dying worse—fever spiked, felt allergic—so it's been on my record as an allergy ever since, and they've avoided those meds. But what if it was a Herx reaction, where killing the bugs makes you feel sicker temporarily? I've had teeth removed (five) and sinus surgery with cultures from the nose abscess, but symptoms keep coming back: left back/kidney pain after dialysis. headaches, low fevers (97.8-100.8), fatigue, fluid in lungs/belly, enlarged liver/spleen, and random issues every couple weeks.
Is it possible the dialysis overshadowed the infection, leading to misdiagnosis as autoimmune (like AAV)? And could biofilms in my catheter be hiding the bugs, causing recurrences? Or the original infection jarring through my body during dialysis? Has anyone gone through this—sepsis from teeth/sinuses mimicking vasculitis, mislabeled allergy that's actually Herx, organ damage (kidneys thinned, lungs hazy, fatty liver)? How did you get proper treatment? Feeling like doctors think I'm a hypochondriac now. Any thoughts or similar stories? Thanks for reading—need hope!