I normally walk every day for 3 hours. But yesterday, I felt so tired and exhausted after walking, that I slept for 4 hours. But it wasn't the usual tiredness that I get. It was a feeling of drowsiness, as if you are going to pass out or as if you have narcolepsy. Before I had these lyme-like symptoms, I could walk 3 hours or more without feeling tired, or at least super exhausted. I believe that I got these symptoms because I went walking in a trail that was formerly train tracks and has trees now. It's possible I might have gotten a tick bite there and I might not have known that.

It should be noted that I was diagnosed with hypothyroidism and am taking levothyroxine. However, I still feel the same symptoms prior to diagnosis and even though I am taking medication.