Recently, I have been getting sharp pains in the left side of my back, just below the shoulder blade, when breathing deeply or lying flat
on my back. It began about 2 months ago. At that time, the pain was at its worse and lasted about 4 days straight. Since then, it comes and goes. I have also had significant changes in my fingernails. Every fingernail, except the two pinky's developed horizontal indentations and all have dents and slight vertical ridges. My toenails have not changed.