Not my theory, but some interesting research ...
Since it was well over 20 years ago I was diagnosed, the interweb didn't exist !! For me everything kicked off after I jumped from a windsurfer in Malta and landed on a bed of sea urchins. I had hundreds of sea urchine spines broken in each foot !! So a quick google search unearthed some very interesting stuff (see below)...
Who knows !
Cheers, Finchie
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http://www.ncbi.nlm.nih.gov/pubmed/10769100Abstract
Arthritis, tenosynovitis, and bursitis due to sea urchin spine injuries have unique pathological features and run a chronic course until the spines are removed. Of the 40 cases of sea urchin spine-related clinical symptoms published to date, only 12 had osteoarticular symptoms.
PATIENTS AND METHODS: We studied 12 cases with osteoarticular symptoms seen in Réunion Island from 1994 to 1998. There were nine cases of arthritis and one case each of tenosynovitis, fasciitis, and bursitis. The nine males and three females had an age range of 9 to 50 years.
