lyme disease
".I had proper Lyme disease (not 'chronic' Lyme, quack quack) took doxy for a month, after a tick bite a year ago. 

Most symptoms went after a couple days, still suffering from some minor pots and memory loss but  improving each day.

My best recommendation to people with post Lyme syndrome.... Exercise consistently (within your limits). This has really improved heart and cognition problems for me. They do get better it just takes time. Be patient... 



Taking doxy after 4 weeks for Lyme is not necessary unless you have serious neuro complications . (You will have need to have had Lyme for 10+ years for this to be necessary, and still 2 months is enough.



Look at the evidence please. Taking copious amounts of abx is not good for you."