Oh, no.. I am so sorry. She definitely sounds like she is in some serious distress.
When I have had to put a gecko down that was in a bad way, I cooled her for several hours in the fridge (in a sealed ziplock bag) before putting her in the freezer. Before I put her in the freezer she was completely unresponsive and appeared to be in a deep sleep (cold coma?)..
I'm so sorry, again. That must be have been painful see..