Worst illness I ever had was a few years before COVID came. I was puking so much and so tired I could hardly get out of bed and walk across the room. I ended up laying on the carpet outside the bathroom. I was watching my sister's apartment while she was out of town. My dog was with me. I was so ill that I couldn't walk her. I quite literally remember crawling/sitting on the street almost ready to beg a stranger for help at getting her walked. Sometimes you just get shit symptoms with flus or whatever your fighting off naturally.