Traveling with your pet  

Hello myLotters!
I need advice, and for some people to calm me down!
I will be taking a flight tonight, yes yes, on Christmas Eve! To my sisters for the holidays, and I will be taking my cat Loki as carry on.
I made sure to call the airlines to make sure there's room for Loki, booked my flight, then called back to put him on my itinerary, so that parts handled. WHEW!
I also have the soft sided pet carrier which is Airline approved, also taken care of.
BUT, I was having a bit of a panic attack last night after I packed too quickly, and so I had a LOT to think about. What is the process for the carry on pets anyways??
All I could think about is: XRay machine, constantly crying, something else going horribly wrong! Do they actually put the pet through the x-ray machine? will they be ok? I was going to also give him some gravol, which is a stomach medicine, I was going to shave some off the pill, mix it with yogurt, and feed it to him so he doesn't get an upset stomach, and what happens? I somehow pick up the wrong pill! It's a lozenge, not a pill at all! So I said screw it! It's insane enough trying to go ANYWHERE now, takes up to an hour JUST to get into the parking lot!
Anywho, can anyone tell me the process of the whole carry on pet thing?