I don't know, enfilade. I don't like the sound of it, simply because I've never run across these kinds of complaints outside of a disabled athletes facility. I know people with these sorts of complaints and some of them go to the disabled world championships. If you think you should continue to self-medicate, please try whey protein, about 50-60g/day, distributed in small doses. What you are going through could perhaps be attributed to inadequate protein, considering the amount of rebuilding you are asking your body to do. Maybe it won't make any difference, but it can't hurt you to try it. Go out an buy a pound of some flavored stuff you can just mix into water with a spoon. More self-medication: selenium - 100mcg/day, 2 ea. 500mg calcium/250mg magnesium/200IU vit. D per day and the biggest multiple you can find.
If those interventions don't make a noticeable difference in a week, there is something wrong.
Your theory of how to get in shape should have worked. Like you say, you're pretty young. I'm just saying, IME improper training does not explain the state you're in.