Thank you maam for your response.
My last query ,
Would a really drunk person know if somebody sticks a needle ( injection ) behind them? Here the person is awake but is drunk with same scenario ( severe headache , puked and has little difficulty to walk and talk. )
Thanks in advance.
Everyone's system handles alcohol differently, so there really is not clear cut defintion for being drunk. However, from your description, I would say you were drunk.
As to feeling the injection, since you were not sleeping too soundly and kept waking up, I doubt if you would have stayed asleep if someone had given you a shot.
I wish I could be of more help, but, as I said, I just am not 100% sure.