hi everyone, a month ago I discovered a thin black line running down my thumbnail. During that same time I started to feel overly exhausted and to get brain fog. The line in very faint but is very much here. The doc ordered some blood work to be done but I am a little scared. A little background here: i had a baby nearly a year ago that has never really slept so I first put it down to just sheer exhaustion. When the line then appeared on my nail I put it down to nutriment deficiency as I don't eat any dairy, fish, shellfish, nuts, a various veg and fruits (all due to allergies