Perez Hilton is back on his feet and "slowly" recovering following a 21-day hospital stay and recent emergency surgery. "After my 21 day hospitalization with severe sepsis, just a few days ago I had to be admitted again with a deep vein thrombosis on my right leg," Hilton, 48, explained via Instagram on Tuesday, April 7. (A deep vein thrombosis, per the Mayo Clinic, is a serious condition in which a blood clot forms in the deep vein of the lower leg or thigh.