TXLDA is the short name for Texas
Lyme Disease Association, and they can likely give you names of
Lyme specialists near you.
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As to cost of the tests and doctor visits, your insurance may cover much of it, or if you don't have insurance, then ask TXLDA (see above) and also go online at ILADS [dot] org for MDs or organizations who may be able to assist you financially. Best wishes to you!