Why Are My Nails So Hard All Of A Sudden Why are my nails suddenly stiff and growing? 3 Out of nowhere, my nails went crazy and hard. I work in a restaurant business and I must say I never worked. They are always soft and present or break quickly. I wonder what he is doing. No I don't want it to stop! Oh, I haven't changed my tee or anything. And it came with other weird things like pimples on my head that I never did and it changed. I'm 24 years old and it's new! I will say three things...