Woke up this morning at about 6:00 (usual time), had 2 eggs and a bowl of Total for breakfast. Cooled up some water and got ready for my 8:30 workout

Today we were going to do Fight Gone Bad. I kept score for a buddy and then got ready to go myself.

I was to start with 20lb wallball. The clock started and I did 30 wall-balls in my first minute, then headed for the box jump.

After my 8th box jump, this pearcing headache came out of nowhere. It was towards the high left side of my head. The pain almost brought me to my knees. I sat for a while, coach saw what was going on and said I wasn't going to jump back in. Well, from the pain, I knew I wasn't going to jump back in, but it was good to hear he wasn't going to pressure me to do so.

I sat down, popped a wet towel on my head, and 15 minutes later the headache was gone. I've been feeling tired throughout the day, but I don't know if this has anything to do with it.

I've never experienced anything like this before and was wondering I should have just pushed through it. I'm really ticked off cause FGB is one of my favorite workouts and I have only done it once in the past, and no one was keeping score!

see a doc, maybe even go to the ER.  sudden headaches like you've never experienced before like that may or may not represent a blood clot, and if that goes to your heart... ick.  not something to mess with.  It's probably nothing, but get checked out asap. 

I still think you should get it checked out.  You'd be amazed... but maybe its me being paranoid.

While i agree with Ken that one should be paranoid, especially as an athlete. I too am wary about having the doc on speed dial, especially as its 15 dollars every time i want to see him which adds up quickly if you go several times a month for him to say "dont worry about it" and i don't feel like im getting that much piece of mind.

If i get poor sleep, if I am eating poorly or incorrectly or if I am just feeling tense and/or under the weather (that is, feel as though I am going to have a hard time performing even before i start) then it is pretty common for me to get a headache, especially when pushing myself to the max (which all my workouts do..)

Just yesterday, for example, i felt pretty crappy going in but decided to try anyway and had to cut my day short because of a headache that came and worsened as intensity increased.  It persisted through the night, as well.

I dunno, just my experience, though I haven't had that checked out for myself