Discoloring in Flowering stage?!

So im almost at the end of my fourth week of my outdoor grow of a crossbreed Northern Lights/Haze.Been noticing some brownish orange spots on the leaves and some of the crystylized leaves are gettin brownish orange on the tips.Any ideas?!? Its not from too much sun and not enough water cus it has not been hot and its been cloudy and a little rainy.

She needs nitro, hit her with veg nutes once.

Oh ok thats all? I actually just added some nutes about week and a half ago...