After the procedure you will be monitored closely in the recovery room or returned to your hospital room. If this was done on an outpatient basis, you will remain in the clinic area for about one hour. If any other procedures were performed, like a tumor or gallstone removal, you may require more observation and need to stay overnight in the hospital.
During your recovery, you may feel slightly bloated from the air used during the examination. Your throat may also feel numb and slightly sore. Until you are able to swallow properly you won't be given anything to eat or drink. You should expect this to last 2 to 4 hours.
You will stay in the recovery long enough for the drugs that make you sleepy to wear off and to be sure that you are recovering normally.
Remember that your healthcare provider wants you to recover without any problems. So be sure to report anything that does not feel normal or "right."