Hey pumpkin - welcome to our forum.
While band 41 isn't specific to lyme disease (other 'things' like you listed can cause it) - it is one that often shows up when we do have Lyme disease.
What lab was that? Labcorp?
It's not a good lab for testing Lyme disease, unfortunately.
The lab you should be using is Igenex lab (California) you can call them and order a test kit. They specialize in testing tick-borne diseases.
/www.igenex.comFor $210 you can get the Lyme WB IgM and IgG. It's worth the money.