“Calf pain?”

Hi, I have been having calf pain for the past few days. It feels like muscle soreness from a cramp, but when I go from sitting to standing, it feels like it catches, and is painful enough to cause a momentary limp. I thought maybe I pulled something, but as of today, my hamstrings have also developed the cramping sensation. Does this sound like an electrolyte imbalance or something more concerning? Thanks for your answer.