To scrimmage or not to scrimmage

Last night, I participated in contact and hitting drills (woot!) and the result was a little dizziness towards the end of practice and a very short-lived headache afterwards. So now the question is: am i ready to scrimmage tonight? If I don't scrimmage tonight, the likelihood of my playing the next game is pretty slim. But if i do scrimmage tonight and my head gets jossled, it might exaccerbate things causing me to prolong my medical leave from the wonderful world or the roller derby.

I vote for taking things one jam at a time. I'll get myself good and warmed-up and then aim to be on the track for at least one jam. And if I'm feelin' good, i'll try for 2 jams... and so on.