tbh this whole food poisoning has put me off the whole thing, i might gradually incorporate raw foods into my diet when i get to grips with primal but for now i think i will stick to the medium steaks!

Hi, so I've started doing the primal diet (marks daily apple) for about 11 days now and I started to feel good, then i started to get a headache and feel very mildly sick (which i hoped was the start of 'carb flu')
the problem is at the same time i started looking around on this forum too and decided i would cook a very rare steak i had bought from tescos (tesco's 'finest', cooked same day as bought)
well the next morning i woke up at 4 and threw up in the toilet (only once) and have had bad diarrhea all day (basically a green liquid (sorry!)) and feel pretty ill, that was yesterday and today I still feel pretty terrible though the diarrhea has subsided slightly
Is this food poisoning? If so I'm pretty annoyed because on this forum everyone's talking about how great raw food is and that it can't make you sick but it made me sick!!
any thoughts on this?