Does what comes out of a girl—who suffers from obsessions regarding mani (semen) and madhi (pre-seminal fluid)—when thinking about or seeing certain things, count as mani or madhi, and what are the implications for changing clothes or performing ghusl (ritual bath)?

It is advisable to disregard and pay no attention to obsessive thoughts (waswasah), because indulging in them leads to great evil.

Regarding vaginal discharge, one can refer to fatwas that explain its types, characteristics, rulings, and how to differentiate between semen (mani), pre-seminal fluid (madhy), and vaginal moisture (rutubat al-farj), as well as what one who is doubtful about the type of discharge should do.