There are many causes for ridges on the toes
nails such as
eczema, lichen planus, dermatitis, peripheral vascular disease, psoriasis, fungal infection, and Raynaud’s disease. Since you all have numbness, shooting pains, forgetfulness, arm and leg weakness and fatigue chances of Raynaud’s disease and other peripheral vascular diseases should be ruled out. Diabetes, smoking, high lipids and high blood pressure are some of the causes of peripheral vascular diseases.