I had the Delta variant in August 2021. My smell and taste returned in Feb 2022, but VERY limited. Food just does not taste good. Once in awhile I smell rotting food and think something is in the fridge or dishwasher or garbage disposal and I clean and disinfect everything nothing rotting in this kitchen. Just my brain misshapen by covid. Regarding sinus infection….ongoing since last Sept. mucus like glue, wakes me at night like I am choking. Headaches? Everyday! Low ferritan yes, found by “ mistake” on iron and vitamin C supplements. Sorry , the fatigue still with me. Total body pain, digestive issues blah blah blah. Sick of telling doctors who just notate and have no answers.