California Democratic Senator Dianne Feinstein suffered far more serious complications from her recent illness than her staff previously acknowledged. That’s according to The New York Times, which reports Feinstein’s recent bout with shingles triggered a previously unreported case of encephalitis, or swelling of the brain, which can leave patients with lasting memory or language problems and other cognitive effects. She’s also reportedly suffering from vision and balance impairments and facial paralysis from Ramsay Hunt syndrome. Feinstein , who is 89 years old, returned to Capitol Hill last week after a months-long leave during which she missed more than 90 floor votes. Her absence also held up dozens of votes on President Biden’s nominees to federal courts in the Senate Judiciary Committee. A growing number of Democrats have called on Feinstein to resign, but so far she has refused.