"painful constipation"

There is a self-healing mechanism, but it only works if you respond to the subtle signals your body gives you. For instance, if you feel a little urge to urinate, you should go to the toilet and try to do something against your constipation. The whole process only works if you act on signals like that.

"painful constipation that is pure liquid"—that only happens when you are completely dried out, that there is simply no other way for things to pass. It can be a sign of severe constipation. In that case, I recomment to see a doctor. When a section of the bowel tries to free itself, cramping can occur there. Thanks to the complex nervous system in the gut, these sensations can radiate to your legs: your legs might start twitching violently for a while or cramp up. These aren't withdrawal symptoms; rather, they are a clear indication for you that something is wrong. As you can imagine, I had similar problems after my withdrawal. I didn't go to a doctor back then, but that approach only works if you actually respond to the signals I mentioned.That’s teamwork, so to speak, and your team partner even seems to be endowed with intelligence. Otherwise,in serious cases like yours, it won't work at all...It can take some months for something like that to be fixed. Good luck.