pro grower

I have been seeing white spots on leafs it's not tye powdered white stuff fungus but tye leafs are having patches, can anyone please help

Hello could someone help me out? i’m not too sure what’s wrong with my marijuana plant but it looks as if the leaves are a little burnt and starting to shrink up. i’ve been using just regular spring drinking water but recently (today) switched to distilled. the soil is miracle grow potting mix...