Do you notice any improvement?
If they've upgraded lyme treatment to 4-6 weeks, there's a reason. You may experience some herxheimer reactions soon.
It sounds as if your history is fairly new and action was taken quickly. (applause)
Everyone will respond differently to abx. (ooohhhh) I maxxed out with amoxi and switched to doxy, then to doxy w/zith. (ahhhh).
It could be your restless sleep is the abx fighting your bacteria. It keeps me awake all the time.
Just hang on to your hat if you start feeling more than that during the next 2 weeks. You could have a different symptom or unexpected symptom which is also the bacteria being killed. I'm the worst to say "don't panic", but you'll find a lot of support and compassion here.
I see in my crystal ball that your future looks bright.
Keep in touch