The term 'FELT BAD' can be broken down into three crossword solutions: RUED (4 letters), AILED (5 letters), and ACHED (5 letters). RUED means to regret or feel sorrow for something, AILED means to suffer from a physical ailment, and ACHED means to experience a dull, continuous pain. Therefore, the phrase 'FELT BAD' can be interpreted as feeling regret, suffering from an illness, or experiencing a dull, continuous pain.