dentist used maximum dose felt the tooth being pulled traumatized?!

Been going to my dentist now for 3 wks gettting treatment and half denture fittings ,last thurs got bad toothache so went to dentist as emergency patient and waited 3 hrs to get in dont mind that pain was so bad would have waited forever. When i got in she just touched my tooth and said (it was sensitive)I was crying with pain ,she said she could not see anything wrong with the tooth and did i want root canal treatment or removal (had x ray on this tooth week before she said was fine)Of course i said removal wanted this pain to stop ,she injected my gum with i dont know what i went outside for 5 mins went back in ,she tried to pull my tooth i felt it so stopped her , another injection wait 5 mins and same again and this continued until my tooth was half out .I was almost passing out with the pain finally she said im up to maximum dose you can either come back tomorrow or bear the pain whilst she pulls it ,honestly im not shy of pain but i have never in my life felt pain like this eventually tooth out. Then i gets home and face starts swelling eye went black and back come the pain ,still had no sleep since Friday 24 7 pain ,im 53 had lots of teeth out in the past puzzled as to why this happened dentist just said it was sensitive ,one side of my face looks like a hamster and people think some one give me black eye .does any one know why this happened?