May 18 I went for a run in Los Angeles when at one point when I planted my foot I felt a pinch in my ankle. I passed it off as a muscular or tendon spasm (as it most likely is), but about 3.5 weeks later I developed a nasty sore throat (exudate present) and fatigue and I couldn't stop thinking of if I stepped on a discarded needle. I understand exudate is more characteristic of mono or strep but I still got a 4th generation test at exactly 27 days. It came back obviously negative and so I'm wondering how reliable that result is?