Breastfeeding Causes Tendonitis I Know Breastfeeding Causes Sagging, But Does Extracting The Milk With One Of Those Machines Cause It Too?

I know breastfeeding causes sagging, but does extracting the milk with one of those machines cause it too? - breastfeeding causes tendonitis

Is it necessary to remove the breasts or a woman can not breastfeed, or simply use the machines?