Could getting general anesthesia hurt?

A little: Some medications that are used for anesthesia might hurt but many anesthesiologists will give medications that will make you forget and some medications for pain before they give you the medications that is mostly known to hurt (propofol).

Hurt: Hurt in what way? Like in side effects?

GA: The reason for GA is to prevent pain. GA is preceded with pre meds to reduce some of the side effects. There are a few reported cases of patients not being filled induced by GA and sensing sensations. These are rare and are case reports and most patients GA works and is effective. Pain post op is based on the type of surgery and can be variable. Best of luck