allergic rhinitis
"I have been trying to deal with drippy eyes and nose (saturating multiple tissues in a couple of hours), and upon awakening clearing throat for over 20 years since moving from the east coast to CA. I  finally decided that I had enough and the doctor told me to try Zyrtec. I started it a few days ago...yep, the drips improved, BUT, I feel exhausted, falling asleep, no energy. I think I may have to deal with the drippy symptoms and tell Zyrtec to take a hike!"