If you've been watering after she started looking like this, and it didn't stop, then it's very likely overwatering.
Let the soil dry out completely before watering again. You won't see a change tho, until you water after that, as the symptoms for over and underwatering, pretty much looks the same. So you'll have to guess on when the soil is dried up..
It'll stun her growth a bit, and it'll take a couple of weeks longer for her to finish flower, but you should be able to fix it without alll too much damage.