Check your ph bro, she looks like there is some issue. I had similar problem with my Chempie in late veg. In my case water ph6,5 wit sensi cal mag extra solved the issue.
looks like u may have a mag deficiency, the yellowing between the leaf veins, easiest way I think to tackle it is to get some epsom salts fast. Couple waterings with some of that added to your usual schedule n she should recover to bud
she has agood structure, and will be huge.
the yellowing looks like lightburn to me. i would watch it.. do you have anew light, if yes... dimm it or give more distance