The phrase "awful feeling" means a strong and unpleasant emotion or sensation.
Sentences with «awful feeling»
She is too disturbed by the destructive emotional tornado in which she is living, and too threatened by awful feelings of failure, to look deeply within herself. (religion-online.org)
Your dog doesn't want to be «bad»; he just doesn't know how to cope with how awful he feels. (petfriendlyhouse.com)
And I can tell you from experience, it's a really awful feeling. (omegabodyblueprint.com)