She likely has a deficiency. Give her the calcium on her food daily until the twitching stops. And get some herptivite and use it twice a week until the twitching stops. I would get some reptaboost /repta-aid today. Its kind of like frog formula with essential vitamins and minerals. Mix it up as per instructions. Add a couple drops of dechlorinated water and feed it to her. An absolute must...dechlorinate the water. Use tap water and add the drops. Grif has given you great advice. I think your baby may be toxing out from the water and has a bad deficiency of either calcium, magnesium, or potassium. It can be reversed if you act quickly.

Good luck!