It it normal that i get a sore throat everyday during work?

I used to work at a grocery and now I work at a department store, and I always get a sore throat halfway through my shift, even at my old job. I'm quite shy so it's not from talking a lot. I do a lot of walking, standing, and moving my arms which could be why, but my throat doesn't hurt after an exercise session. At least I have an excuse to eat ice cream I guess.