Coulda been a combination, Sounds a lot like food poisoning to me, hon. What had you eaten 8 hours (or so) before synptoms hit? Top that off with a tough t session....... then headache and both ends blow, geeze, which what is who anyhow? Glad your'e over the hump.

I recently read an article on how common a touch of food poisoning is.... we dismiss it as a touch of flu or this or that but, really it's usually from eating food that has sat around waiting to be served for too long. Hot or cold.