My tides were fluctuating, too - back and forth, back and forth - sometimes so fast they seemed to be spinning. They call this 'rapid cycling.' It's a marvel that a person can appear to be standing still when the mood tides are sloshing back and forth, sometimes sweeping in both directions at once. They call that a 'mixed state.'
Even writing verses from my first album, there were songs that I didn't use because I just felt that they weren't really for me. But I think that happens naturally when you write songs. You're in a different mood in every session. There's so many songs out there that could potentially be used by other artists.