It is about the guilt feeling that Biliie Eilish feels after she murdered her friends and her lover. Billie doesn’t know what she is doing in that action where she is murdering them. Afterwards she thinks “what have I done? why did I do this?” that’s why she said “where’s my mind?” So it illustrates the unawareness in these actions. Billie first thought it would feel good to kill the people she loves and cares but the term “bellyache” clarifies that she got a strange feeling in her belly because she didn’t knew what she was doing while she was killing them. The “noose” that Billie brings up should compound the guilt more intense. Billie also mentions that she is carrying the corpses with her and what she was doing with them.
It is about the guilt feeling that Biliie Eilish feels after she murdered her friends and her lover. Billie doesn’t know what she is doing in that action where she is murdering them. Afterwards she thinks “what have I done? why did I do this?” that’s why she said “where’s my mind?” So it illustrates the unawareness in these actions. Billie first thought it would feel good to kill the people she loves and cares but the term “bellyache” clarifies that she got a strange feeling in her belly because she didn’t knew what she was doing while she was killing them. The “noose” that Billie brings up should compound the guilt more intense. Billie also mentions that she is carrying the corpses with her and what she was doing with them.