Hi Blake!
Welcome to our community, officially!! We are so glad you found us.
I'm sure you've also read how we encourage new members to read through our "New to Lyme?" thread because it's packed with helpful information? If you haven't yet though, please do!
Yes, the timing and the symptoms do indicate that you are experiencing a herx. Herxing is the increase of current symptoms, or the start of new symptoms in response to treatment, which can sound kind of vague, but once you've been through it a few times, makes sense. As these bacteria die, they release toxins. Our bodies get overloaded with toxins in our bloodstream, and it produces symptoms.
Are you detoxing? If so, would you mind telling us what all you are doing for detoxing at this point? We may have more suggestions. If you haven't started detoxing yet, there are some great suggestions in the 'New to Lyme?' thread, as well as here:
www.tiredoflyme.com/detox-methods Keep asking questions! The learning curve for these infections can be pretty steep, and we are here to help as we can!