Oh How Embarrassing

I went to do my blood work and knowing that they would need a urine sample, I didn't go to the bathroom for an hour or so before I left. I have the smallest bladder. It runs in my family. I forgot to bring a water bottle with me but I felt like I had to go so I wasn't worried about it. The lady takes me blood and has absolutely NO trouble finding my vein ( stupid ER staff ) and then she tells me to go pee. I was in the bathroom for like 10 minutes and nothing. Finally I leave and find a drinking fountain and guzzle a bunch of water. Finally after about 30 minutes I feel like I had to go. I go to the bathroom, sit down and drop the dumb cup in the toilet. DOH! I was so mad and embarrassed because now after 30 minutes of producing NO PEE I have to go ask for a new cup. I go get a new cup and then go to the bathroom and FINALLY go! WOO HOO! so my lab visit that took an hour should have only taken me 10 minutes. I get home and within 15 minutes I pee THREE times! No joke. Then I get in the car to go some where and the second I drive off I have to pee AGAIN! I swear...