I haven't had an epidural, but as you know Pandora I've had spinal taps and other invasive treatments for my cancer which were very painful. I recall having the tests and treatments, but I know what you mean about losing time, because I would often lose time after the treatments, sometimes as long as a couple of days. I also lose time when I'm really stressed about something. For me anyways, I think it's a form of dissociation, a delayed reaction to physical or emotional stress. Everything you mentioned was really stressful, maybe forgetting is your way of reacting to the stress. I know it's mine to an extent.