Numb

Its 100 years in the future. Scientists have found a way to remove pain, and everything that comes along with it. Its injected in your thigh, when it hits you're blood stream it spreads. Sending this liquid to every part of your body, and finally the brain, when it hits the brain it basically turns off you're pain sensors. I mean would could go wrong right? But, what if you don't want this new found cure ? What will happen to you?