Is multiple ghusl from janabah during menstruation valid and purifying? Is one ghusl sufficient for more than one instance of semen discharge? Is performing ghusl for both janabah and menstruation with a single ghusl valid? What is the correct method for ghusl?

1. It appears the questioner is suffering from ablution-related waswas (obsessive whispering/doubts).

2. If menstruation and major ritual impurity (janabah) coincide, it is permissible for the woman to perform ghusl for janabah while she is menstruating. When she becomes pure, she performs one ghusl to remove the impurity of menstruation.

3. One ghusl is sufficient even if semen is discharged multiple times.

4. One ghusl is sufficient for both menstruation and janabah if she intends both, or even if she intends only one of them.

5. What is obligatory in ghusl is to ensure water covers the entire outer body. Anything beyond that is sunnah (recommended).