Total hysterectomy! Scared ?

So after my baby is delivered (c-section) I'm gonna have to have a total hysterectomy same time. Bc of this the dr. Says he needs to do general anesthesia not a spinal (I'll be asleep). Anyone else experience this? Did u have to b out to sleep or did they let u stay awake? How long till you woke up? Did it affect u breastfeeding your baby?