Yes, trust is a H U G E issue with those of us with PTSD. I'm sorry to hear your mother was ill and unable to give you the care you needed and craved. I hope you can begin to realize that it wasn't something she controlled...but a true mental illness that controlled her. (Yes, it would have been nice if she'd received therapy for it

)
It's very tough to judge others. It often makes the judges feel worse, for they, too, are fallible.