I ran a 20 mile race on Sunday and used 3 lucozade gels (mile 5, 10, 15). I ran it fairly hard and ached somewhat the day after but didn't feel I overdid it. A couple of hours after the race I had a big roast dinner, cheese and biscuits and some wine. The food and drink afterwards were nothing new as I often have a big meal with wine after a race or long run.
On the Monday I started having really, really severe diarrhea which has continued since. Everytime I eat or drink anything it goes through me so quickly and comes out in liquid format (tmi I know). I have to get up a few times through the night as well. I've also had a very 'pinching' stomach and have obviously felt shattered and dehydtrated.
I use lucozade gels during my marathon training on long runs and have never had a problem before. Does anything think this could be connected to the gels I used on Sunday or is it just bad luck and a stomach upset? Btw, I haven't been sick at all although I have felt it a little.
Thank you for any advice.