Hi. I had a condition as a child that caused a slight pigmentation issue on my right foot in the arch, and back of my right thigh. It caused painful cramping and eventually some muscle waste. My parents no longer have my medical records and can t remember exactly what it was called but were told it may come back at puberty or menopause. Seems I m cramping often and possibly more muscle waste, now in my right ankle area. Have no idea how to even start looking now for possible conditions. Am a 52 yr old female, basically healthy.