Me again!
Have seen a private physio who says I am well on track with my recovery - ahead of schedule even. No way should I do these exercises that cause intense pain, they are not even the most needed ones for this stage. She says exercise should be hard work and possibly some discomfort but they should not cause intense pain and lasting after-effects. So I shall do as she says, take it more gently while my ankle recovers from the crazy calf raises, and then get back on track with my walking etc. Gradually I will be able to do tiptoe but my calf is not grossly wasted or tight so no panic for now.
OK...so I'll have to pay but I feel much happier about this more careful approach that actually takes account of the state of the ankle. A more experienced physio.