looks like its just the transplanting shock... dont worry just ride it out.. if it gets any worse then you might want to flush it it also could be drooping because you just watered it ... or a combo of freshly watered and transplant shock .. but imo i dont think its a big deal.. just wait and see.. best of luck..
ohh yeah and for future reference dont feed your plants with nutes right after a transplant it could over stress your plants..