<human>: So I'm an 18 year old female in my final year of high school, and I've always, *always* had a crappy immune system. Constantly getting viruses, bugs and colds. I'm pretty sure it's due to a severe lack of sleep and insomnia over the years since my diet is great and exercise is average I'd say. 

Whenever I wake up in the morning either throwing up or just feeling terrible and exhausted, I ask to stay home from school, or wait an hour or two to see how I'm feeling, and then go to school. I only ask to stay home when I know I absolutely can't go because of throwing up etc. 

Recently this year, when I've been sick or caught a bug she immediately starts yelling, screaming and blaming me for it saying I'm just faking it. This morning she slammed the door open so forcefully that there was a dint in the plaster, and she threw my medicine packet at my face. Obviously if I've been throwing up all night it isn't faking it, and she knows this. I think it's just the initial rage that I'm going to be missing another day of school that overpowers her and makes her so incredibly angry, because almost always she apolgises later on and says she doesn't know what came over her. We talk about this, and she says she will try to work on it, but it just seems to be getting worse. So so much worse. I'm scared it will escalate to violence or something now that the throwing of objects has started.

The weird thing is, her mother also used to do this to her. They had a strained relationship and there was always some resentment between them. The fights they had were nightly, I just don't want this to happen between us at all. 

I guess I'm just asking, what can I do to help her with these outbursts of rage and anger. I'm scared that it's just going to get worse, and the last thing I need when I'm really sick is to be yelled at and to feel guilty.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: Mother gets really angry when I say I'm sick and need to stay home from school. The outbursts are getting much worse, what do I do?