Do I have an allergy to pig/cow products or do they just gross me out?

My friend and I were sitting down in her mom's car and she started eating this thing called "Pig ears" (Pig meat). I almost puked. Then today I was sitting down and another friend was eating beef jerky, I started to feel sick. And then when a friend was at my house, she was eating steak and holds it up to me, lets just say she had to take a shower. Do I have an allergy or something?