Tahaarat

Ghusal becoming compulsory if mani comes out without any desire

Q: Because of my excessive masturbation, I got pre-ejaculation. If I see a girl continuously for some seconds mani comes gushing with desire automatically without even touching my private part and without me wanting mani to ejaculate. Is this because of my sickness? Most probably this is a sickness because when I defecate with force, then without desire mani comes out.

My question is:

Many times I see a girl and feel desire in my penis and I feel something is going to come out gushingly so what I do is, without holding or touching my penis I pinch myself on my legs or I think about something else so that the desire goes away and then after sometime mani comes out without any desire and also this comes without wanting to do it. Must I do ghusl for this?

Fear of impurity spreading if a sanitary nappy moves slightly

Q: I would like to know my state of cleanliness because I am unsure. Due to my current illness, I have to wear specific sanitary items/nappies for urine leaks. I bought a new type of sanitary nappy and saw that the edges sat tightly around my body. However, at night when I turned, it moved a tiny amount. These nappies have inside cuffs that sit on the groin area for urine to stay inside, and then you have a tight elastic on the edge.

My question is, if the edge moved slightly, does this mean my clothes or hands are affected by the impurity if they get in contact with that area?