Stress of any sort could potentially lead to herms... Do you have pics of the damage? Let's figure out where you're at. You could be in dire need of micronutrients, which the fish and bone meals don't supply a complete set, but by using too much, you didn't allow yourself 'room' to add enough liquid fert to supplement them... I would personally use a foliar spray right away, like spray n gro or the micro part of the GH 3part (not sure if it is meant for that but I've used it successfully to treat micro def after a SERIOUS soil problem).