I think you are probably right. I have eased off since I had anaemia, and I'm in the process of building the exercise up again fairly slowly. The hour I do a day does include warming up and stretch and cool down at the end. The most intense thing I do is cycling and so far I haven't had any injuries. I think a lifetime of feeling guilty about over-eating and not exercising enough has left me a bit unsure about reading my bodies signals. I teach primay (elementary) school and it can be really exhausting, but I keep on with that and the exercise.
It's not easy to get quinoa in australia, but a friend has told me it's available by internet from a Sydney health food shop. I might give that a go.
I already eat heaps of leafy green vegetables and I eat mostly capsicum (bell peppers?) for vitamin C. I don't drink juice at all (except the occasional vegetable juice) because it really pushes my blood glucose levels up.
thanks for you ideas - I think one of the other things I need to do is get my iron levels checked more regularly. I think I sometimes am just tired and put that down to low iron. One other positive is that my doctor says that over time my body will get used to a lower iron level.