hello and thank you for asking HCM, I understand your concern. Regarding to the symptoms, it seems like your daughter has psychosomatic disorder, which means that her inner problems which bother her cause physical symptoms. So if she has problems on her job, at school, with her boyfriend or somethink else, you should try to talk to her. If this doesn t help than try with a psychologist who will help her to solve her problems, or at least to face herself with these problems. It is not normal to have energy one day and the other without. I hope this ans wer was helpful to you.