How Painful is the Local Anaesthetic Injections for Upper Eyelid Lid Lift when Combined with Twilight Anaesthetic. So Scared?

I perform most of my eyelid surgeries with IV sedation (aka twilight anesthesia).  A patient yesterday stated she did not even feel the numbing at all.

I don't give much to worry about. I do many upper eyelids with sedation and local or local only. The same cannot be said of lower lids why prefer to put patients to sleep.