Actually, no. And I personally find it much easier on my muscles than lugging a car seat around or holding a squirmy toddler! If you’re using your sling or carrier correctly, it won’t hurt at all. If you’re using a ring or pouch sling, make sure the fabric is spread over the ball of your shoulder and across your back, not all bunched up near your neck or in a tight, thin wad across your back. If you’re using a wrap or any carrier with straps, make sure the straps are not wadded, bunched, or twisted. If wearing your baby hurts, then there is a problem that should be solved! Please contact us or find a local babywearing group for hands-on help.