not urinating - sounds like something dangerous - or potentially life-threatening. the urine you do pass? is it dark or light? - Do you feel bloated if you are not passing urine - have you had diarrhea recently. Check your blood pressure ( you may have created a incredible hypertensive state) also check your pulse, it can indicate dehydration if it is fast.
you may be borderline hypoxic too. that is something that can kill you.