my almost 7 month old suddenly had dark green poo last night! even though she's been eating a littlr fruit/veggie almost daily, it hadn't done that to her diapers before. she has been going every other day lately and it's not hard or dry. this dark green wasn't as squishy, but it also had a patch of light brown poo, as if it started out one color then changed. she turned really red and strained harder than normal with it. should i be worried about any of this? i can't think of any new foods i've had and it has been days since she tried anything new.