Water water water!!! I would wait on feeding until she is ready. I have rescued a number of snakes, and I have found they will let you know when they are ready for food. Dehydration is a killer literally the regurge is not going to help the dehydration. I would soak her for 20 min a day if she is calm about it twice a day if not once a day and if she freaks once every few days and the Gatorade is a good idea if she handles it ok. Stress is a huge factor some tolerate lots of intervention some very little. Stress is a very serious issue too so do what you can with out causing too much. Some animals may need seclusion and perfect husbandry more than anything else, maybe somewhat elevated humidity. Some will tolerate poking and prodding. It is a balance between dehydration starvation and stress. Any one can kill an animal so it is for you to decide how this animal is responding and act accordingly.

Good Luck