Different intense cramping

Just wrote a post about my intense cramping in my abdominal area but ive also had EXTREME cramping in my calves.. Ive been woken up many times from my calves cramping but these last two times it hurts so bad that i cry, a lot.. And then they hurt for a few days and i have to limp... Any ideas on why? I drink tons of water, im healthy, i sleep on my left side, my iron was good when they tested it when i first got pregnant...