So frustrated I want to cry!

Brittany
My lactation consultant has me pumping after my little one eats, because she is a slow weight gainer and the lc wants me to feed her an extra 5 ounces a day of expressed milk via bottle. I pumped for 10 minutes at the highest setting and I don't even get 5ml between both breasts. I'm just sitting here crying because I don't know what to do!! I'm eating the oatmeal I'm drinking the tea, and yet I'm failing! Does anyone have advice?