Ranting for the sake of ranting

So, here is yet another post about my mother and the constant rant my family has going. This past week, my mother has been on edge. Her head has been hurting, she is complaining of weakness and cramps. Now, there are several drugs she is detixing off of, which may be the cause for her angry mood but they were stoped almost a week ago. Conversations with her are non-existant and she always wants to be left alone. Once alone, she starts yelling about something. Now, sure, the house is a bit asunder and there are chores that have been neglected. However, I am a full time student and I do as much as I can, when I can. I don't have a lot of experience taking care of a house, and working, and studying. But, I am trying my best, even if it's not good enough. My dad is also trying. He has taken off work to be with her everyday. He makes her breakfast, does some chores, and helps her with her appointments, bills, etc. But he gets yelled at for her shirts not being folded properly. I understand that my mother is angry and that she has the right to have her feelings heard but she is on the verge of mean. She told me, today, that she wanted me to stay home so I could be around if she needs me but wants me to stay in my room so she doesnt have to see or hear me. Now, I told her that, that was a rather rough comment but she just laughed. Something is off. Im sure it's left over from meducations but will this stop? Or is she going to get meaner? Because I don't know how to quite deal with this. It's only been a week and she makes me cry daily. My dad is always fighting with her. It's becoming exhausting to be home.