“Teen Mom” alum Jenelle Evans sobbed as she revealed a rare neurological condition, complex regional pain syndrome (CRPS), has left her in “excruciating pain” and unable to walk.

The MTV star told her Instagram followers Tuesday that she had knee surgery back in April and quickly realized something was wrong when her leg wasn’t getting better.

“The doctor that performed my surgery confirmed the CRPS and sent me to a pain management clinic. I went there about two weeks ago and [the doctor] tried giving me a steroid shot injection in my lower back, which wasn’t the best idea because I have been in excruciating pain ever since,” she shared.

Evans…

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