We call them cramps! It feels like you have been kicked by a horse named Charlie! It will get better, but you and your husband need to get on this site and read, read, read! You need to learn about his "dry weight" and take control of this situation because the Techs are just guessing and they don't care that you are sick at midnight because they are in the bars!
Am I allowed to ask Kickstart if you've been back on a horse yet? I know it's off topic but we were talking about horses called Charlie...lol. I'm gonna come riding with you if I ever get to England. I'm a horse person too - well, I was, for years when I was younger.