Will i know what's happening while i'm under general anesthesia?

No: You should not be aware of anything when you are under general anesthesia.

No, but....: I agree that you should not be aware, but your concern valid.The incidence of awareness under ga is very low, but the risk increases with how sick a patient is prior to surgery(limiting anesthetic options, and the safety of "deep" anesthesia)and it can also be increased with certain surgeries(eg. Those requiring neural monitoring).Consult your anesthesiologist pre-op for the specifics of your case.

You'll be asleep!: The definition of general anesthesia is complete unconsciousness. We have monitoring equipment that helps us be sure that a patient is completely unaware while under general anesthesia. Occasionally as patients are waking up, they will feel as though they are dreaming--perhaps at work, or at some other activity. But you should not anticipate any recall of events during surgery.

No: With modern anesthetics we try and shut down the memory of the patient before they go to the or. Once they can't remember what happened, it is very hard to find out what they felt as they went to sleep. Without sedatives the very medication that is used to put people to sleep blocks memory formation, so we have the same problem. Same with waking up. Patients come to in the pacu after the op.