Dropped headphone case on baby's head

Im cleaning cause I have family visiting. My 7 month old was laying on her dockatot and I had my tushbaby carrier on. My wireless samsung case was in the big pocket unzipped and when I bent down over her, the case fell about 2 feet on to her head. I feel like such a pos. She started crying hard but settled after holding her for a minute or so. I can already see a small red bump on her forehead and sent a pic and message to our pediatrician. I just feel terrible. 😭 ive never dropped her or anything and im so careful around her. Im sure she will be ok but I just had to vent on how absolutely terrible I feel.