Haven't slept for 2 night nights now, body jerks awakes me

Signs and symptoms
1

Hi All Firstly, I realize there are others in far worse situations of non sleeping. I am just here trying to work out what is happening here with me, all of a sudden it's distressing me. The last 2 nights have been hell, first time in 25 years I have literally been up all night, I just haven't slept a wink, ( though I do have some things on my mind), what seems to happen is that I go to drift off, then get a body jerk, which wakes me back up again, it's like my brain saying you're not sleeping, this happens over and over and again. I am having some water work issues and I wondering if it's because my brain thinks I need to wee? I am considering taking Nytol or something, anyone got any tips, as never had this before, because I do work and I feel it is suffering. Thanks