Ay alam ko yan, nangyari din sa akin with my third! At 3 months, ang mata nila still very sensitive pa talaga sa bright light kahit hindi direct sun, kaya naturally nakapikit lang sila or nagsisigaw. A few of us tried putting a light blanket or tsinelas over the stroller when going out and it helped, pero honestly, this is something worth asking your pedia about just to make sure walang other reasons, lalo na if she seems uncomfortable or if it's affecting feeding time niya. Mine grew out of it by around 5 months, pero every baby's different talaga!