haha you might be on to something there speedy :L but the last time I rode with my period (i normally don't cause I get pain so crippling I've been admitted to hopital) my legs did. Not. Move. Haha but bubbles was being a sh*thead and I lost a stirrup when she decided that she was distancing without my hand at it and took off one (and a half) strides too early I got run over she effed off to the gate and I got up swearing my mouth off covered in mud on one side and already had a bruise forming on my kidney after 5 mins. I rode again with more determination and she was like uh ohhh im in trouble. I found out a few weeks later the reason I was in so much pain was cause I had broken my ribs in the fall. Funny thing is I didnt feel the pain till the next day when I rode my friends pony (im soooo thankful her mum only let me walk).
But I was suprised I stuck for as long as I did lol, maybe it was cause of my period :L
R.I.P ~ Bubbles - 25yo tb mare - 13.04.2011 ~ 8:30am ~ passed away naturally and peacefully in my arms