I test negative for Covid but I feel tired all the time. Never had Covid that I know of and all the vaccines snd flu and etc. I was in the company of relatives with severe colds coughs etc, , felt tired and had an entire night of mucus thickly dripping
Into my upper chest; I still have tiredness,had one extremely sweaty night, no front nasal mucus -only post nasal drip continues. Still test negative no fever.