37 weeks sciatica like pain

i dont know if it is sciatica but whenever i change positions in bed or when im getting up, laying to sitting to standing or just sitting to standing theres this electric shock kinda zap or pain right around my lower right back to the bottom of my butt. its really painful. im 37 weeks pregnant now and im just done. does this go away immediately after csection? i have 3 more days but this alrdy feels sooo bad. i cant do much. doctor cant so much. it hurts so bad. what did yall do to overcome the pain? i have a toddler to care for the next 3 days 😫