oh no Mike! I'm so sorry you are in so much pain. :(
Are you taking stool softeners, like Miralax? Do you think you should reduce the dosage a bit? Either that or keep the stool softeners, but use the painkillers to cope with the pain. Some people get immediate relief from the spasms, but many of us don't - I didn't, but my spasms weren't as bad as yours sound.
This really sucks! I'm so sorry. Maybe some other folks have better ideas for you. I really hope the pain stops soon