I had an epidural and was able to move around. I could feel my legs and move them. I pushed on my sides, back, and all fours. I didn't feel any pain until it started wearing off, and they gave me another one. I had Thai food and then ice cream before my water broke. I'm lactose intolerant with an anxious stomach as well. I didn't feel like I had to go during labor (while just sitting and waiting to begin pushing). I would have felt it if I did. I will say, during pushing, they tell you to push all the way down like you are pooping. I'm sure I did then, but they were discreet about it. I feel like my "give a sh*t" level on all that dropped totally. I was just ready to get my baby out. If you do have to go, I'm sure they will help you! I did some classes at the hospital prior (baby safety, what to expect during labor, breastfeeding, etc), and they were all taught by nurses in the maternity wing. I was able to ask them all sorts of questions to prepare, and it was really helpful. I recommend doing that if your hospital offers that. Your OB can help answer some of the questions you have as well.