Wynter,

It sounds like you have got a handle on dealing with the discomfort of radiation. That's really positive.

We were advised by the nurses when John was getting his treatment to stay ahead of the nausea, i.e. Take medication as soon as you start to feel nauseated and don't wait until you are actually throwing up as it will be harder to bring it under control once you start throwing up. Is the gagging due to anxiety or the thick mucous? If it is the former, Lorazepam will help as will mindfulness meditation, or even just telling yourself to calm down and focus on breathing regularly. John did that all through his treatment on the advice of his therapist. If it is caused by thick mucous, then using the Waterpik more often with some magic mouthwash will clear your mouth.

I hope this helps. You are almost there, soon you'll see the light at the end of the tunnel.