i would ask the doctor to get you off the paxil. only than that you should need to go to the ER
Never stop any SSRI cold turkey. Since these drugs are non-addictive people assume that you can stop and start very quickly. See your doctor and explain what you did. Perhaps he can prescribe something to take the edge off.
you should go back to you dr, or ER, you are not suppose to STOP depression, anxiety medication suddenly. Good luck