Mama, it is tough having a high-needs baby. There are no two ways about it - you have a tough row to hoe.
Is her reflux under control?
I think you should talk to a health-care provider about depression. You are not a bad mother! You are not a bad mother! But it sounds to me like you're in a very depressed place right now and may need some help.
And you do not have to smile and take it when she hurts you - don't hurt her back, obviously, but feel free to make sad faces, cry, put her down, whatever you are feeling - because you are a person and you have rights, too. You can be gentle but assertive with her that she is not to bite, hit, punch, kick you etc. - gently restrain her or do whatever is best, including putting her down and walking away, to keep both of you safe.
If your dh is telling you that you're a horrible mother then he's an asshole. No one is allowed to say that to you, not you, and especially not him. He is not allowed to treat you that way, and if he does, then leave him or get help but do not take that verbal abuse from him.
He also needs to step up and take care of his own daughter so you can take a shower, brush your teeth, and have a cup of tea. Your dd has two parents, not one, and he needs to start acting like it.
mama Please don't be so hard on yourself. Your dd doesn't hate you - she loves you more than any person in the whole wide world, and needs you to be healthy for her. Please get some help, mama.