For those who have anxiety and/or panic disorders, how did you cope with labor and delivery?

I don’t have a high pain tolerance so I intend to get an epidural, but I’m fearful of the pain leading up to it, having a reaction to it, if it doesn’t work, and what if I freak out because I can’t feel my legs. Any advice?

I feel like as long as I get the epidural and it goes smoothly, everything else will be fine but it’s nerve racking.