AutoFeb

I'm not familiar with biobizz soil, but usually yellowing means she is hungry. I wouldn't change anything yet as long as you have already been feeding. Wait and see if she starts to recover. I looked at your diary and wonder if this is something to do with topping them up with more soil around the stems.

Yes, there is some burning from too much nitrogen, but the yellowing is an indication she is hungry for phosphorous and potassium now that she is flowering. Cut back on the nitrogen and give her a dose or three of a P/K booster and this will help her continue. The damaged leaves will not recover, but it will help keep her other leaves healthier. Hope this helps, Organoman.