Another Night of Contractions...

Yesterday I felt great! Almost like I wasn't pregnant anymore. I went to bed last night...and woke up at 4:30 this morning with contractions. I timed them until 6:00, when I had to get up to go to work. They were every 4-6 minutes. It's now 8:30, I'm at work, and they haven't stopped. They are now 4-10 minutes apart, but I've been getting them for 4 hours. They don't really 'hurt', just more uncomfortable than anything.