Vaginal azoles are used to treat yeast (fungus) infections of the vagina. For first-time users, make sure your doctor has checked and confirmed that you have a vaginal yeast infection before you use the vaginal azole antifungal medicines that do not require a prescription.
Loose U-joints along the drive shaft, failed bearings and worn CV joints can also produce similar rattling sounds. Further rattling can also come from the wheels when brake calipers are loose. If the rattle is heard after hitting bumps in the road, it could be caused by a bad ball joint or another problem with the suspension system.
#2. The sound you are probably hearing is straight-cut transmission. The whining noise is caused by the teeth of the gears slamming together. Its nothing to worry about and the reason why it's not audible in most road cars is that they use helical gears to keep the transmission whine to a minimum.