I know the feeling
From Longman Dictionary of Contemporary EnglishI know the feelingI know the feelingspokenUNDERSTAND said when you understand how someone feels because you have had the same experience ‘It’s so embarrassing when you can’t remember someone’s name.’ ‘I know the feeling.’ → feelingExamples from the CorpusI know the feeling• "She makes me so mad I could scream!" "I know the feeling."