My 3 year old daughter is so attached to me😢

Shes been sleeping with me since i gave birth to her in my bed. Frequently shes been crying every morning or sometimes night if she doesnt feeel me next to her she screams soooo loud like bloody murder !! I caught her so many times crying and saying "i dont know im crying"! When i come rushing in my room saying "what happened why are u crying?" How to stop making her feel like this i know it is my fault that shes like this its cuz shes my last baby , i have a son who is 5 and he isnt like this he has his own room..