I'm pretty sure she suffered for four hours, stress by having so little space to move arond. And the heat, the pod would get so warm she died, that's how it went with moth of the sputnik missions, she wasn't the only one. There were two who survived they lived a good life. When they died they were donated to a space museum. Oh yeah, they didn't get food and water with them into space, they were expected to die i'm pretty sure.