Hi people!<br/><br/>I cannot find the meaning of the term achin' in these lyrics below:<br/><br/>I've been lonesome,<br/>I've been empty<br/>I got an achin',<br/>Way down inside<br/>I need someone,<br/>(...)<br/><br/>This is from the song 'Turn out the light and love me tonight' from Don Williams.<br/><br/>Thank you!