Could chronic (2 or more years) Lyme disease be the cause of my continous migraine-like headaches of over a year?

Yes, it could. Lyme disease effects human body with prominent neurological involvement. The patient may manifest the following flu-like symptoms with joints pain, muscles pain, fatigue, headache, stiff neck, sore throat, fever, chills and enlarged lymph nodes. Headache is the most common symptom (in 50%) and can transform in chronic daily headache. See orofacial pain specialist near you for headache management.