Funny I ran across your post. I haven't had a fill in about 8 months but just called this morning to go in this afternoon to let some Fluid out. I have a cold, (day 4) with LOTS of drainage. Since yesterday, I can't eat or drink anything - it comes back up. That being said, I am not sure if it's the cold (mucus), the cold outside (it's single digits here in Wisconsin yesterday and today) or something else. I found last summer, I had the same issue when we had record breaking heat.
That being said, I also had a glass of Metamucil (fiber) yesterday and soon after that, I started to have problems. I never took that before yesterday so it's something new for me.
Anyone else have issues with extreme temps, Metabucil or mucus?