I have been on Synthroid and Thyroid (Armour) for hypothyroidism for two years. I have very weak, thin, finger nail
s that break or split horizontally and/or vertically, moons only on my thumb
and 1st fingers, multiple thin ridges going
up and down
on my nail
beds & a few fingernail
s that are flat or bend under.
I also have mitral valve prolapse with regurgitation - grade 3. Are my fingernail
s indicative of either my thyroid or heart problem?