Tap water (ANYWHERE) smells horrible to me, no one else smells it. This is a recent development. any thoughts?

Over the last week or so the water in my home, at work, at friends houses...just everywhere has started to smell horrible to me. My husband doesn't smell it, no one smells it but me. It smells metallic, sulfuric, just aweful. I have no idea what this may be caused by. Anyone have any ideas?