You say, "Don't worry, be happy." Oh! So that's totally how this anxiety thing works: I just won't worry. Why didn't I think of that before?! Next time my throat closes up and I can't leave the house, it won't be a problem... In my spare time I'll skydive, shoe shop and rave. Oh wait, I'm not Lindsay Lohan. And I'm afraid of heights, crowds and loud noises. Now I remember why I hate platitudes. They don't work.

Anxiety and depression often go together. It's called comorbidity (Relationship Between Depression and Anxiety). Not only does suffering from the one make it more likely you'll have to deal with the other at some point, it also means that, baseline, emotions are more of a challenge. Comorbid anxiety and depression bounce your emotions around, making you feel hopeless and scared at the same time.