Yes, Lyme can be seasonal. Mostly with Spring and Fall being the worst time of the year, but I could see where one could have a flareup that would last through the winter and thus blend in with Spring and Fall flares. Bryan Rosner had a video blog about this earlier this year, but it looks like it may not be archived on his page anymore.
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, Anemia, Lymphopenia, intermittant Pancytopenia, chronic malabsorption/malnutrition, etc.; G-J Tube; Currently TPN-dependent.
Meds: Zofran, Pulmicort, Vitamin B12 Shots, Heparin (to flush PICC line).