Had this same case in residency. Baby was IUGR because mom was a meth/coke head. Anyway, placed the epidural told her that she would be numb.
A little while later she started freaking out talking about things were crawling on her and it had to be the epidural. I said nope. The epidural is not the cause but likely your Amphetamine/Cocaine use is What is that feeling that drug users get when they feel spiders and bugs on their skin? She kept calling and acting totally crazy, yelling, scratching out her skin, getting all wild with the nurses.
I finally had it, I went in and told her if she didn't calm down, I would pull the epidural. She kept at it and I pulled it. She gave birth without my assistance.
Tweaker's gonna tweak!!!. Funny, but true statement. That biatch was trippin'. My attending was a little upset that I didn't talk to him about it, but the nurses were relieved.