Electric shocks

Kat • I am a Texan abroad with my sweet hubby and a beautiful 19 month old daughter and trying to conceive our second child.
I have been having what feels like electric shocks to my vagina, especially when I am walking, that are strong enough to stop me in my tracks and last 5-30 seconds. I am 35 wks tomorrow. Is anyone else having this? Is this what labor is going to feel like- cause holy cow it is painful!!!