Hello
Lyme disease is a complex disease and very difficult to diagnose because sometimes  a patient may show negative vector , while other time may show positive result . 
I will try to explain you .
Lyme borreliosis is caused by a spirochete , Borrelia , burgdorferi, sensu lato, that is transmitted by ticks of the Ixodes ricinus, complex.
The infection usually begins with a characteristic expanding skin lesion, ERYTHEMA MIGRAINS ( E M stage I)
Stage I After an 
incubation period of3-32 days E M which occurs , at the site of tick bite, usually begins as a red macule or papule that expand slowly to form a large annular lesion.
Stage II In this patients may develops secondary annular lesions similar in appearance to the initial lesions.Skin lesions may accompany 
SEVERE HEADACHE, , MILD STIFFNESS OF THE NEAK,FEVER , CHILLS , MIGRATORY 
MUSCULOSKELETAL PAIN,ARTHRALGIS  & PROFOUND MALAISE & FATIGUE.
3 In this typical pattern of intermittent attacks of OLIGOARTICULAR ARTHRITIS in large joints , lasting for weeks to months .
In your case deal accordingly .
Hope ypou get required information.
Good luck.