My guess is that you're wanting the formula for respiration (which is basically the opposite of the formula for photosynthesis)?
So on the left (reactant/inputs) side should be: sugar and oxygen
On the right (products/outputs) side should be:
Carbon dioxide, water, light energy/ATP
This is the Krebs Cycle. It is a lot like a wheel. The Krebs Cycle gives off FADH^2, NADH, and a bit of ATP.
If she has cramps Dark chocolate helps with that.But just give her advise on some things.Tell her it gets better and its just part of life.