Does anyone here have personal experience with CBD (cannabidiol)?

Do you, or a close friend or family member have experience using CBD for medicinal purposes? I’m talking about the stuff with super low or zero percentage of THC.
What for and what form? Was it effective? Were there side effects? Personal accounts only, please, I can research the substance itself just fine on my own.

General question, I don’t want stories of how you got high in college.

Thank you.