single pump and double pump

Tonni • Coty❤️💍 Emmy: 11.08.13💖 Grayson: 09.07.16💙 Grace 11.24.17💖
I've been double pumping but one nipple is more sensitive to the other. When I single pump, I get more out. When I double pump, I get less and less in the sensitive one. Am I the only one? I wanna single pump cause it feels better. But its taking me 30 minutes total to pump if I single pump. It sucks.