Obstructions are extremely painful. If you are totally obstructed, you will be unable to keep food down and everything in your intestines above the obstruction will come up. And it keeps coming up until you get to the hospital and get anti-nausea med, pain meds and a tube to release the pressure. Is there a reason why you think it is a possibility? If you are keeping food down, eliminating from the other end and are able to function, go on holiday and have a good time. Running it by your doc before you leave is wise also.
I have had more total obstructions than I can count. They are painful, but they can be resolved in the hospital.