I have experienced this.

For example, in my second last apartment I noticed a few times while sitting on the roof (we had a little accessible roof you could climb up on from the second bedroom and sit) I would get the strangest urge to just...step off the edge. I had to literally stop sitting up there because I was afraid that one day I would not be able to stop myself from just stepping off. It was bizarre, and not even like I felt as if I wanted to die or anything, just an urge to just step off and see what happened.

How did i deal with it? well stopping being in that environment helped, and making sure to ground myself if/when i got a weird urge was important. I also noticed that the times i felt the urge i was very stressed or disconnected. Could it have been the actions of another part or intentions of another part? well yeah, i think it could have been. I have experienced random coconciousness with other parts where I am unable to control the body but am still aware so it could definetly have something to do with that.