Ay mama, ang pagngingilo na yan ay normal na at nangyayari especially pag lumaki na ang baby and approaching na ang delivery, pero since GDM ka rin, mas okay na i-mention mo talaga to sa endo mo next appointment para sure lang na hindi something else happening. One of my mum friends with GDM din was surprised na may sharp pains siya but OB assured her it was just ligament stretching, pero importante na doctor mo ang nagsabi para walang worry ka. As for insulin, i-rely ka lang sa management plan ng endo mo, some GDM moms ay monitoring lang talaga, iba need ng insulin depending sa blood sugar readings nila. And yey, at least secured na ang tetanus injection sa hospital setting, less hassle on your end closer to delivery! Fingers crossed for smooth delivery mo, mama, you're doing great!