You are one of the toughest cases on this forum! So it is great that NB is helping.
Could the heel spurs be calcium deposits? If I recall, you had a pretty severe calcium shell going on, which results in calcium going to all the wrong places.
My wife had symptoms of both excess calcium and low calcium, which is common for a calcium shell.
Anyhow ... glad you are making some progress. When you start getting detox symptoms ... recognize them for what they are, and don't get discouraged.