I feel for you! I hope the laxatives work for you quickly. I have suffered in the past from big time constipation, & now if I go off my eating or get dehydrated I still have issues, so I have a slight idea of what cramping you were feeling never mind how toxic it makes your body feel.
There are things you can do when it first starts up but after a few days to a week it is so difficult to clear out, especially if traveling.
Windlyn is so fun, Windlyn is so grand, So come on everyone, All across the land, Come and join us now, In this awesome site, We will show you how, Talking through the night. ~npixelz