Hi Cyn,
I've had general anesthesia seven times - six for surgeries and once for a colonoscopy. In fact, three weeks ago, I had what was supposed to be a laparoscopic surgery to remove both ovaries, but I had too many adhesions and scar tissue and they ended up having to do an open procedure. (I still had the puncture incisions from the lap though, along with an 8" incision from the open procedure.)
I remember right before my first surgery, a hysterectomy, how fearful I was of being put under. I soon found out that there's nothing to it. In fact, I rather look forward to the uninterrupted sleep.
You'll probably be given something to help calm you before the surgery. You'll be transferred over to the operating table (and those rooms are always freezing, so they'll wrap you in a warm blanket). They usually will hold an oxygen mask over your face, then they'll start the anesthesia. You might feel the medication flowing through the IV into your hand or arm (it feels kind of cold.) You will blink a few times and then the next time you open your eyes, you'll be in the recovery room. It literally just seems to take a few seconds, and you don't know anything at all that happens in between.
As mentioned though, anesthesia can make you nauseous (it always does me!) They can give you meds to counteract that, so be sure to request them.
Good luck and I'll keep you in my prayers.
Hugs,
Lisa