I've noticed this the last few days! Either things have no taste, or they taste like I have just brushed me teeth with strong toothpaste.
Kinda like drinking orange juice after tooth brushing.....same kind of feeling.

Also last year I had this OVERWHELMING smell of peach in my mother-in-laws kitchen. No one else smelled it. Earlier in the house I had walked right through a "cloud" of mist or smoke then it disappeared. I had an over riding sense it was my deceased mother-in-law trying to communicate with me. It felt so strong that I started having a conversation with her photo!

Now I wonder if its all just the MS? No peachy smell from mom?