How often do any of you experience this?

I, for example, was on top of it yesterday. Worked out, went out by myself, met new people, got numbers from girls and took one home by the end of the night.

Today I felt like a potato for most of the day. Thinking about going out alone made me nervous. Forced myself to do it anyway and couldn't hold a decent conversation with anyone. Felt anxiety riddled.

It's almost as if I had a "confidence hangover". Too much confidence one day then none to muster the next.