One symptom of MS, not particularly common, is impaired taste.
A few years back I struggled with this ailment. It happened overnight. After I woke up the next morning, I had a glass of water, and realized something was off. I couldn't quench my thirst. I tried drinking more water - even adding ice - but nothing changed.
Anything I ate had flavor, but it was very muted. I knew what it was, what it was supposed to taste like, but I could barely detect any taste.
Within a few days, my taste buds had reawakened...but to my disappointment, anything I drank or ate now had a metallic flavor.
The following week, my dining experience once again shifted, to sour.
At times it felt like somebody was playing a practical joke on me, food didn't taste like food, it tasted like whatever my MS was going to trick it into thinking that day. But for me, the worst part of this entire experience was the inability to quench my thirst.
I woke up thirsty and went to bed even thirstier.
When I look back on the entire episode, I feel relief. I never celebrated my taste buds returning to normal (I even hesitate writing about it, for fear of jinxing it) because I know that each new day brings the possibility of those moody taste buds returning.
Hopefully, they won't. But until then, I'll be savoring each meal and the true tastes that accompany them.