Salam,
I am a woman and I have this very embarrassing issue. Sometimes (particularly the week following my period and the week before it) I cannot help but get this type of discharge while doing wudu. Even if I think something arousing for a mili-second I can feel something and I get this cloudy discharge.
I am honestly trying my best, but it is becoming physically exhausting to do wudu in a way where I will not get discharge from arousal, and I have to re-do my wudu which makes me miss my prayer. I am very stressed about this. Please let me know what I should do.