Others here can speak in more detail, but if you have been ill for
longer than a few weeks at most, taking only doxycycline
may not be effective.
Also, were you tested <span style = 'background-color: #dae8f4'>for</span>
other infections the same ticks often bring along with Lyme?
If your doc did not give you hard copy of ALL the test results, whether positive or not, get copies of them for
your own files, and let us know (if you want to) (1) what you were tested for
and (2) what the results were and (3) what lab(s) ran the tests.