im 21 weeks and a cashier at a grocery store. I did a 4 hour shift tonight and since finishing my shift, i can barely walk. i am walking with a very obvious limp, i have tail bone pain and pain shooting down my right bum cheek and leg. i cant bend over, roll or walk properly. i couldnt even put my pants on myself without assistance. is this sorta thing normal or do i need to see the dr. its not mild pain either its about 8/10 sciatica shooting pain