Hi Kim,
Welcome to our family. My heart really goes out to you. I know it is hard enough to have your mom have cancer , but when the medications alter her personality it makes it even harder. Cindi mentioned an article I have about steroid psychosis and I would be glad to give it to you, but it is a pdf file and I don't know a way to attach it here. If you would like to email me by clicking the email button at the bottom of my profile , I will be glad to attach it to email. It was just something that I found on the net, but it helped me to understand my husbands behavior when he was on steroids and other meds. I can tell you that the patient does tend to take things out on their family . As hurtful as it is to you, they have no control over their behavior. As in my husband's case, they can become quite paranoid also. Knowing this won't make it go away, but it will help you understand and know what is usually done about it. In the meantime, you have found a group that is very kind, compassionate and willing to help you . Looking forward to knowing you better.
Sue