I don't think there is really such a thing as "too much" exercise. The issues really are:
* doing too much, too soon; or
* not eating enough to support your needs.
As long as you ramp things up gradually, and eat within your recommended range, the levels in your post should be fine!
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.
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