I can't write on a chalkboard or be in the same room as one that is being written on. The sound and feel of them gives me a perpetual shiver and extremely stron

I can't write on a chalkboard or be in the same room as one that is being written on. The sound and feel of them gives me a perpetual shiver and extremely strong physical reaction. The chalkboards would be a significant hindrance to my productivity. I much prefer a whiteboard for this reason.