Recent research shows that Lyme disease manifests itself differently in different age groups. http://www.mvtimes.com/2016/07/13/visiting-physician-sheds-new-light-lyme-disease/
Bottom line, make sure you protect yourself from ticks. Perform tick checks. Follow CDC guidance on tick removal. Monitor health. Get treatment as needed. Control ticks and the rodents and deer that continue the tick lifecycle.
Remember, nature is beautiful but it can kill you.