Aloha Andrea_73,
the spontaneous movements most of the time is just qi working it's way through a blockage. It it gets continues and is a bit overwhelming, then just thank your body and ask for it to not move as much as it does it's work.
Your friend can do Spring Forest Qigong during menstruating. The breast massage during this time is also very beneficial. If she is doing one of the meditations, it can be more beneficial to have her end with breathing into her heart area, rather than her lower dantian.
I haven't heard of an SFQ class in Italy yet.
Much Love, Shawn
