I am sorry you are feeling so poorly, if you have lyme disease (sounds to me like you do in my opinion), it is treatable and you can be symptom free with the right treatment.
I honestly don't know about the test you mentioned, what I do know is the most accurate testing lab we have in the U.S. is IgeneX Labs in Palo Alto, CA as Ticker mentioned. Their website is:
You can order a free kit from them but you will need a doctor's signature for them to test your blood.
Also, ticks or other blood-sucking vectors have no boundaries as they are in every state and many countries, the U.K., Europe, South America, and the list goes on. I always thought that ticks get too much credit.
A friend of mine became infected in Montana and all the doctors told her there was no such thing as lyme disease there. But she had it and today she is completely better. Remember that ticks are not the only transmitter of lyme bacteria, the host of all lyme bacteria is the white footed mouse and whatever blood sucking vector feeds on these mice get infected thus transmitting lyme to mosquitoes, fleas, black flies, mites, spiders, really most any bug.
In my opinion fibromyalgia is just a symptom of an underlying disease, there are no facts to back up Fibro as well as other "names" that doctors give because they don't understand lyme.
Many of your symptoms sound like the ones I suffered from and I was coinfected with Ehrlichiosis (there are many coinfections). Ehrlichiosis is known to cause fatigue and joint pains as well as a non-productive cough.
Your best bet right now is to first get tested by IgeneX Labs, then take it from there. If you can not find a Lyme Literate Medical Doctor near you, then you have other options. I was first treated by a LLMD with antibiotics which didn't work for me (not everyone responds to antibiotics like myself). I used an alternative medicine protocol that I followed from a book that I bought on the internet.
Ask questions and learn about this disease Become your own advocate and trust your gut instincts. I have been better for over 3 years after having lyme and ehrlichiosis for over 10 years and it took me about 8 months to get better and I know plenty of people who are better. Lyme is not a life sentence and you will and can get your life back to where it was before you became sick.
Last but not least, a person could have the lyme bacteria in their body for years and when a stressful situation comes along their immune system weakens allowing the bacteria to flourish. I believe a strong immune system as well as a healthy diet will kill the lyme bacteria by itself.
Hope this helps,