My fingernails and toenails are shrivelled since when I was young and have taken all measures to cure it but to no avail. It seems as if it is fungal but have tried applying gel liquid/cream but it didn't work. So, I suspected that it was my lack of vitamins. But, the condition is still there. I thought that my new nails will grow over time but it is still shrivelled-looking. Please help! Thanks.