awful day

So I left my daughter on the rug this morning on her back , I went to the bathroom for 1 min or les and I heard her screaming I came back in the living room and she was on her belly screaming , I thought she wanted to be in my arms so I picked her up and she was still screaming crying very bad I didn't know what's wrong with her I thought she's hungry I gave her milk but she was still screaming,I undressed her cuz I wanted to see if her skin its red or something but she was screaming worse when I touched her left arm ,I went to the ER right away , the doctor who saw her asked if I beat my daughter 😢 , she don't have any bruises or scratches why he would ask me something like that ?was something wron with her elbow but nothing serious she didn't need medicine or any intervention but my heart its broken because they thought I beat my 6 months old 😢