My mom deals with shingles, it's weird how it comes and goes with no rhyme or reason to what brings it on.
Don't you hate having to do ice when it is so cold out? Unless you keep your house warm, then it doesn't matter much, lol, but I don't keep mine real warm, so a cold fan blowing while it's below 8 degrees out just sucks more. While my feet like it colder my mental well being is sick and tired of this freezing weather that feels like it will never go away.
Sorry you have been so under the weather, hope you get full recovery ASAP!