I believe that Beau's lines are horizontal across the nail, not vertical. Beau's lines can show arsenic poisoning and malnutrition.
You can get one or two splinter type hemorrhages if you catch your nail on something and it gets pulled back. I've had that happen on rare occasions. If you have several in one finger or more and did not have an "incident" to explain them, or have several on several fingers, that seems serious to me.
I typically have fast growing hard nails too, but when winter comes they tend to get brittle. I am also hypothyroid and winter is hard on me even with hormone replacement.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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