Does anyone get crippled when their calf cramps up and they try to walk it out?!

Does anyone get crippled when their calf cramps up and they try to walk it out?

I mean like you have to hold onto the wall to walk or you just can't walk or you have to get someone to help you walk around

While we are at it, does anyone know why these occur? Mine seem to come at any time - I might stretch my legs when I wake up and the leg (usually my right one) will get stuck in a cramp. Sometimes in the gym, I tense my calf for the next movement - the cramp comes and I end up having to sit out. Are there health issues or is it something that just happens along with hiccups and headaches?