Tell me please on what timeframe did this start? Do you even have any…

Tell me please on what timeframe did this start? Do you even have any experience with it ? Your lower back is pulling, grabs your stomach starting from the bottom, it goes numb in the moment, the stomach hardens, the pelvic bones begin to ache and the uterus seems to squeeze all this with sharp pain sensations I'm trying to breathe slowly so I can calm down, I'm trying to distract myself from the pain but it doesn't help Sitting or lying down is even more painful Is this just training and that's normal? Or is this a sign of imminent labor?