Terrible mom dreams

Why do I keep having these nightmares of me being a bad mom?? The last one was weird! I'm shopping and get arrested for breast feeding my son. I'm taken and he gets left behind and since I cant get back to him child services takes him from me. (Remember these are dreams). Another one I'm in a security office watching on cameras and I was my 8 month old fall from the top bunk of a bed. Wtf is wrong with my head that I keep having dreams like this. It's so upsetting!!