A thorough doctor will check your fingernails. Sometimes it is only a quick glance.
You can see horizontal lines (and feel them in this case). That would indicate some forms of poisoning, or serious illness.
http://www.google.com/search?q=beau%...w=1173&bih=765
http://en.wikipedia.org/wiki/Beau%27s_lines
__________________
All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
************************************
.
Weezie looking at petunias 8.25.2017
****************************
These forums are for mutual support and information sharing only. The forums are not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider. Always consult your doctor before trying anything you read here.