'Mean annual incidence rates for laboratory-confirmed cases have risen from 0.06 per 100,000 total population for the period 1986 to 1992, to 0.64 cases per 100,000 total population in 2002, to 1.1 cases per 100,000 total population in 2005.3 The highest rates in the USA are 69.9 cases per 100,000 persons in Connecticut.'
This is from http://www.patient.co.uk/doctor/Lyme-Disease.htm
It's fairly conclusive data. I have no experience with fibro, despite being female, sorry.
I have benign RRMS which is well controlled right now and have none of the problems that you describe.
It is of course, very possible that many cases of MS in the US and Canada do come from Lyme's disease.
MS can be confused with Hughes (treatable and reversible). Is this the same for Lyme's Disease?
Those who have theses diseases are not counted in the MS statistics after being diagnosed.
MS is still here and is far more likely to come from low vitamin D3 levels, Epstein-Barre and/or CCSVI - but the situation is obviously rather different in the US.