Low platelets, high SEG, low lymphocytes, normal WBC. Feel unwell. History of Lyme. Recent new tick bite. Reinfection? Symptoms similar to before.

Lyme disease. You do not say what your prior symptoms were or whether or not the diagnosis was ever confirmed. If you have had a typical rash, have symptoms of cardiac, neurological or arthritic nature you should be seen by a doctor familiar with this disease and evaluated before being treated.