Worst medical thing you have experienced

[Master]

I once sneezed and thought i caught a cold but luckily it was just hay fever.

You have never been hurt you have got to be kidding

Ruptured my ACL playing football in my right knee which I eventually had operated on years later. Very painful operation. The silly physiotherapist made me do exercise too early and started to bleed in the bed and had to stay a few extra days. I will never forgive her.