What is i ve been down hearted baby?

"I've Been Down Hearted Baby" is a song written by B.B. King, T-Bone Walker, and Juleta Robinson. It was originally recorded by B.B. King in 1964 and released as a single. The song features King's signature guitar playing and soulful vocals, conveying the emotions of heartbreak and sadness. Over the years, the song has been covered by various artists and remains a popular blues classic.