Oof, tough decision on the abx and appetite thing.
Some folks on the tick list have been taking the doxy powder and mixing it with yogurt (cherry seems to be a favorite). I guess it's the way that the govt recommends giving it to kids in the event of bioterrorism. Not sure if that woudl help or not. It might compromise the treatment some (not sure about that), but, in this case, I think that would be okay.
continued good thoughts sent your way!