How can I overcome aversion to e-stim?

I really want to like it, but have a psychological block. I see and read how enjoyable it is for so many, and would love to join in the fun. But as soon as the current starts to flow, even at low levels that don't cause pain or physical distress, I shut down. I understand that it might not be for me, which would be fine. But if there is a way to really get into it, I would love for that to happen. Any suggestions?