anxiety
"Social anxiety involved with my job was causing insomnia and a feeling of constant dread. I take 20 mg.  Here is how it affects me:

I no longer lay awake at night worrying about the next day.  However, I now wake up several times a night on Paxil, but always quickly fall back to sleep.  So overall, this is a great improvement in sleep for me.  Oddly, my dreams are now very vivid.  I have actually woken up laughing.  Rather than fearing social interaction, now at worst I am mildly annoyed by it. I have not been transformed to a gregarious person, but social interaction it something I no longer fear facing.  Other side effects:  mild constipation, less prone to anger, 80% loss in sexual interest, and alcohol has more of an effect"