I’m a shit mom

I left the bottle of Vitamin D drops on my couch after applying a drop to my nipple before nursing. I sat my baby up in my lap for a second when she was done nursing and was on my phone while holding her. I got up put her in her playpen and quickly ate a granola bar. As I was washing my hands I realized she had the bottle of vitamin d drops in her mouth I went over and took it from her. The lid was loose and I counted my lucky stars she didn’t choke on it. Then I realized the bottle was leaking. I called poison control who took all my information and said she would be fine that she may have vomiting but would be fine. She thankfully hasn’t had any vomiting. I can’t believe I was so careless leaving the bottle in reach and not paying attention. It could have been so much worse. This was a few hours ago and I’m still very nervous she will get sick I’m such a shit mom who does that. What is wrong with me I could have killed her.