Question about drugs used for endoscopy

Hi! I am a pre-nursing student and I thought I would incorporate my recent experience into a paper I'm writing on the effects of drugs on the nervous system. I had an endoscopy yesterday to dx a 4 cm hiatal hernia (oh joy! at least I know I'm not having heart attacks, just hernia pain). I was given a printout of the procedure and findings as well as some fun photos of my insides. I started to research the drugs I was given:

7 mg of Midazolam IV
100 mg Meperidine IV
25 mg Diphenhydramine IV

I noticed in researcing the Midazolam that the websites said to give 1 mg for endoscopy and not more than 5 mg, rarely up to 10. I am 120 pound female. Is that a standard dose of the med for someone my size or did I get extra because I was so extremely nervous and freaked out?

Also curious-- do you think I was really still awake during the procedure. Of course I don't remember anything except my husband putting my shoes on afterwards, and I can't even remember how I got home, much less the conversation I reportedly had with the doctor about his findings. During such procedures using the drugs listed above are the patients usually awake? Are they kinda out of it or can they still cooperate during the procedure if the doctor says to bite down on the mouth thing or whatever.

Normally I can take a child's dose of Benedryl if I have trouble sleeping. I'm pretty sensitive to drugs. Do some patients fall asleep or do they all stay awake. I guess it kinda bothers me that maybe I was awake and can't remember what I did. All I know is it took me the rest of the day to sleep off the drugs and I was not really feeling myself for about 12 hours.