What might a gray line in my fingernail mean?

The nail itself is discolored, not underneath - quite suddenly appeared three months ago.What might a gray line in my fingernail mean?
Nails are also a window to our soul, reflecting our Physiological and Psychological condition, by their very own appearance and condition!





Nails, as is Hair, is made from Keratin, comprising Protein compounds. Structurally both are there to protect!





Nails are strong yet delicate. Vulnerable to abuse, susceptible to mistreatment, effected by strong detergents, at the mercy of germs, bacteria and fungus.





if your nails are discolored and have fine gray lines; it might indicate some form of fungal infections if they are not just dirty. Or it might indicate anemia; or poor diet and nutrition. .What might a gray line in my fingernail mean?
one nail or any others? can indicate a time of severe illness or a toxic exposure.
your dying of grey line cancer.. you have 38 minutes to live. go to disney world
It could also indicate a bad diet poor in minerals and vitamins that your body really needs.