A couple of years ago, I had a cold for about four months. I thought I had somehow caught five colds in a row, which I thought was no big deal, because they were just colds after all.
But then I started dropping a lot of weight while eating a lot of chocolate cake. My hair started falling out, and I had the shakes so bad that my handwriting--which I used to be proud of--became illegible. My short-term memory stopped working. It was difficult to have a conversation, because by the time I neared the end of a sentence, I had already forgotten what I was talking about.