Nice to see her recovered. The yellow leafs. That was just the new growth trying to find N, and if there's not enough in the soil it goes to the next best thing, the closet source of N nearest the roots. Did you increase N slightly to fix pal? and when going into flowering to get nice dense buds lower your N so you can focus the energy on flowering by way of adding extra P-K which is key in the flowering stage, N not as much need in flowering but in growth you need more N less of P-K as they are mainly used up in flowering. I wish I knew more about this coming into flowering as my buds are a little less dense than I'd like, but it's early days for you. Really nice base for a great grow. Look forward 2 seeing her progress in a few weeks. Happy growing buddy.