feel good—
1. be in good physical shape:
- The Captain himself said, “I feel good,” but he did not look well.
2. be in good spirits:
- Participants felt good about the ability to talk to children away at college via instant messaging.
3. (U.S. sl.) be slightly and pleasantly drunk:
- After a few beers Charley was feeling good that night.
feel well—be in good health:
- I never cross her, or talk to her much when she is not feeling well.