Hi Ousaima,
the dialogue is a great tool once the client feels enough trust to play it! This reveals you where inner conflicts are and may provide an opportunity for change, and measuring it.
From her symptoms I read the cortex conflict, not wanting to sense and to deal with the disturbance. I guess that she, having been under her exam stress during a period, is still high-strung and overly sensitive. The episode with her sister also shows a longing for everything being in order. During that time, she seems to have been in a constellation of disgust and a skin theme (epidermis or dermis) which creates a "((Endocrine - Pancreas - Alpha Islet Cells|hygienemania))"?
I assume that when she calms down more from her school situation and overwhelm, this will resolve by itself. If not, you should take up the disgust theme with her, and the attached values and beliefs.