What Have I Done

My heart is beating fast. I'm breathing heavily asking: "am I going to last?" Knowing I did nothing wrong still I'm asking: "what have I done?" I'm getting the feeling that something or maybe someone is gone. I asked you: "did I do it?" But no matter what I did or ask you wouldn't admit. I feel guilty I keep asking myself:" what have I done?" I feel like someone switched "overthinking mode" on Did I do something wrong? Thoughts repeating in my mind like the sound a bong.