I think my mom should have gotten out of bed
Is it a problem that she got out of bed?
No, I think my mother did the thing which is right thing to do, she needed to get out of bed, she was crying and she had a headache.
If you have plans you should get out of bed and take care if it on time. Sleeping in can be good but make sure to take care of your responsibilities.
I was feeling that way last night. I'm 20 and my mom needs to take care of me.
20 is old enough for you to take care of yourself. If your mother isn't feeling well and needs to rest is rude to make her get up just to take care of you. She'd probably appreciate it if you got up and took care of her while she wasn't feeling well.