Food Poisoning

So on Tues night I went for a run. Since it was a little later I only ran about 3.5 miles and about the halfway point I started feeling like I was going to throw up. My first thought was that I was working out too hard so I slowed down a bit. That should have been a sign since I don't run fast enough to "overwork myself". When I got home I started getting really bad cramping and thought "This isn't normal". For the next 3 hours I was in horrible pain. I defiled the toilet on multiple occasions but when I threw up for about 5 minutes straight I finally felt better. Who knew I had that much food in my stomach? Oh by the way, it hurts to throw up!!!!