belly itching

my belly itches so bad that it hurts. i feel like it’s stretched to the max. in certain places it hurts to the touch. i’m about to be 36 weeks with twins. is there any way i can relieve this painful itching feeling? i think it’s coming from my stretch marks :( it’s not on my hands or my feet so i don’t think it’s cholestasis but i’m not sure :( i read that your risk for it is high with twins. any advice?