The past few times, (maybe 5) I have eaten steak a few hours later I develop a really painful headache and then throw up. I don't have it particularly rare and it can't be my cooking as it has happened when I have eaten it at friends houses or restaurants. What could it be? It sucks cos I blimin' love steak.
Try organic steak and see what happens. A lot of animals today are pumped full of steroids to make them grow quicker and some susceptible people are having very bad reactions particularly if they eat a lot of the same meat.