Answer:
Most likely a fungal infection, Onychomycosis (fungal infection of the nail)
Explanation:
The symptoms of Onychomycosis are discoloration, brittleness or thickening.
A separation is where the couple is still married but aren't together. They could do to couples therapy or surround yourself with people who are in positive realtionships to try to fix it.
The statement is once a year for women over 40 as they're more likely to develop breast cancer. Also it's once a year for all women over 18 with a family history of breast cancer as it is very rare to develop breast cancer as a child.