How To Tell if You Have COVID-19, the Flu, or RSV

Since retiring, I'm am no longer taking the flu vaccine. I have survived this long without ever having been diagnosed with RSV and won't take that shot either. In fact, up until last year, I had never heard anything called that before. And after being forced to take the covid shots and getting sicker from those than I had been in years, forget that now.

For some odd reason I always, always became sick after receiving flu vaccines and the initial COVID shot made me sick as a dog. I slept for 2 solid days and stayed sick from early summer until Sept of that year. My GP had to prescribe me 800mg (horse pills) of a really odd antibiotic I had never heard of..
Found out later it's because of my RA, apparently since an inflammatory disease that I am more susceptible to catching viruses, bacterial infections, etc. As a result my GP heavily advised me to boost my immune system in taking supplements daily.