looks like a very very slight cal mag issue with the leaf being lighter around the middle that would also make me point towards not enough rather than too much. Though that is just my opinion and it is very very slight as I said I doubt it would impact her that much and clear up on its own after the next feeding if it persists though then i would also look into your ph level it could also be that if it is fluctuating alot that can cause similar symptoms. leaves curling upwards is a typical sign of heat stress curling up inwards from the edges. other than that i bet the plant is very healthy the shad of the leaves is correct and healthy.