What can cause a strong smell like sweat even after just showering and the smell seems to be coming from INSIDE the vagina not outside Note it is free of all hair good hygiene is practiced but if you?

It could possibly be caused by several things: bacterial vaginosis, hyperhydrosis (excessive sweating, sometimes due to nylon or tight fitting underwear). The only way to fully determine what is actually occurring is by seeing your doctor or gynecologist ASAP.