Darkish shiny leaves

On one section of my plant the leaves are a shade darker and kind of have a gloss to them annnnd the leaves are curling down slightly like a canoe.
It appears to be too much nitrogen. But here's the thing I havent used any nutes other than what's in the happy frog potting soil.
It is just over a month old and I was curious as to why else this could be happening if its not high nitrogen. And if it is how can I fix it?
Would I be able to jump right into flowering? I plan on using tiger bloom nutes for flower. I just didn't really want to use nutes for veg.. For this reason lol And it seemed to happen anyway

I'm going to guess the reason you haven't received any replies until now is that it's not much of a problem, and that you included no pictures. Canoeing and all kinds of leaf issues happen even under our best efforts. Sometimes we make minor mistakes that stress and restrict a plant's health. Sometimes a plant's leaves are naturally weird looking and the bud is still great. Don't worry too much or think too hard on it. As a new grower you are likely to obsess on minutiae that is often meaningless. Keep growing and learn a bit more with each harvest. LET your plants grow.