When do you start feeling good?

Ja
I'm so happy to be expecting a child, but my happiness is overshadowed by the fact that I feel terrible. All the time.
I'm 11 weeks and the last 2 weeks have been by far the worst. Consistent nausea, headaches, mood swings - just a feeling of general ickiness.
Everyone keeps saying it should only be a couple more weeks and the first trimester is the worst. But how many people experience this?
When did things get better for everyone? Or did they? Looking for the light at the end of the tunnel.