Lightening??? Whats ut feel like?

Jessica

My first child was born at 7 months due to emergency c section bc my kidneys started shutting down due to preeclampsia. I am now 33 weeks + 4 days pregnant with my son and all day have been having these shocks in my lower abdomen. I have never felt what this "lightening" thing is nor have i felt labor pains. Ladies can you give me some insight on these feelings to the best of ur ability? Idk what these cramps are that i am experiencing.

Thank u so much