I see some things to comment on. Thanks for the details.

1) Nexium--- these drugs used long term every day, lower the acid in the stomach which then affects the absorption of many nutrients. B12, folate, calcium, magnesium, zinc, iron and some trace minerals like copper ...all require acid for absorption.

So you can get your B12 measured now, and Vit D (which helps calcium absorption) to see if you are low in either or both. Your B12 should be 400pg/ml at least.
You can rub in a good magnesium lotion to your ankles and see if that helps too. Morton Epsom Lotion is very inexpensive and available at WalMart, Walgreens, and online at Amazon. Just a little bit goes a long way to restoring magnesium to your muscles and tendons.

2) it is difficult to estimate how much damage you have from Zocor... if you did not take CoQ-10 with it, the damage could be substantial. There is new evidence that cells actually die from statins. This is called apoptosis...
This link mentions a book out now...which is also on YouTube.
http://www.zoeharcombe.com/2013/10/h...ell-at-a-time/
Statins have also been recently shown to demyelinate nerves, and this causes neuropathy and brain damage. They block a certain growth factor that heals and repairs axonal damage.

3) I think you should see a good podiatrist who may give you useful braces for your ankles, or orthotics to help stablize you.

4) long term use of steroids (including nasal sprays) can affect adrenal functions. They lower many nutrients including potassium and magnesium, Vit D, calcium, some B vitamins and over time your body feels these deficiencies and cannot perform properly.
This is a list of some of the nutrients affected by steroids, based on PubMed papers over the years:
http://www.chiro.org/nutrition/ABSTR...steroids.shtml
(This website uses as a reference the same book I have by Pelton and Ross.)

So I do see that you have some areas to explore and implement yourself. Sometimes making small changes in lifestyle can accomplish alot (and most doctors don't suggest them at all--many doctors don't even know what drugs really do the body.)