Hey Grace
I definitely preferred to be under Full GA - i have heard some *horror* stories of other types of anaesthesias
I have vomitted everytime i have been under GA - i know some people dont though, i guess its just all up to how your body reacts to it.
I would look at it this way (beacuse i been there and done that now

)
Either have the surgery and risk vomitting a couple of times - or live with the fissure/s. I dont like the nauasea either but i now know what is easier.. :o You will get there, dont rush any decisions, or let anyone sway you - you need to feel ready and relaxed so just take your time.