Question: saliva

[michka]

I wanted to post this question for a long time but thought it was not interesting for others and I have other side effects. But today, I really want to know if this happened to some of you:
After my 3 rounds of FEC and 12 weeks of Taxol/Herceptin I had to drink all the time. I was drinking 3 liters a day. The onc said it would diminish. I had radiation including all the chest nodes and in fact, with time, I realized that I had very little saliva. I drink less, maybe a little more than 2 liters a day but I absolutely need to take sips of water during the night. My mouth completely dries up at night and my lips stick to my gums. During the day, only if I do not talk or eat for a long time do I feel my mouth dry up. And then I drink or eat chewing gum. The onc just writes it down if I complain and says nothing. And my dentist nothing either and says "it happens". Did this happen to one of you? It is not the worse but an additional side effect to cope with. I am concerned about my teeth because it is bad not to have saliva.
Did you ever hear about this kind of problem? Thanks. Michka