I had the flu really back and already had a degenerated disc was was able to work and get around with little to no paid. We that flu have me 2 days of a bad cough and it really messed with my disc send unbelievable pain into my knee cap and lower calf. I’m talking taking 5 steps and done. Gonna try a good chiropractor and see how it goes. If your getting to age 50 try and talk care of yourself s. Right now my wife and step daughter are getting a crash coarse in reef keeping