I'm a virgin, but I have a boyfriend, and we've been doing some other stuff together. I've noticed that when I get really excited by his touch or kiss, a whitish milky fluid that can sometimes be transparent comes out of my vagina. It also happens when I masturbate. After this, I feel kind of weak and get pain in my legs. Occasionally it also gets a bit itchy. Is it normal to have this kind of discharge along with the weakness?

The milky fluid you are describing could be normal vaginal discharge, which can vary in consistency and color throughout your menstrual cycle. However, if you are experiencing weakness, pain in your legs, and itching, it may be a sign of an underlying infection. I recommend you to consult a doctor for further evaluation and possible treatment.