This is a new symptom. It happened for the second time today. A couple of days ago I felt like warm water was trickling down my leg - as if I'd wet myself or my period had started. It happened while I was in the supermarket. I checked and I was dry - nothing had happened, it was just a sensation without an external cause. Then today I felt like my finger was wet and I touched it with another finger but it wasn't wet. Is this a common symptom that can happen after overexertion? Or should I get it checked out if I keep getting it? Either something is going wrong with my skin, or with my brain.