I had a Aortic valve replacement (mech) in 2011.
Ever since then I been prescribe all sorts of drugs the number is growing as more and more thing have been discovered, my thinking is as a engineer is that the drugs percribed are causing the errors and the medical staff are adding more to cure a fault the last one caused. ( https://en.wikipedia.org/wiki/John_Harrison ) Can anybody explain why? and if a error how do I get of the roundabout ?