Thank you for the information which I will look at when I feel up to it. I took two doses of med yesterday and am paying for it today with dizziness that has put me back in bed. However, I have an appointment that I have to meet today so my husband will drive me there and help me navigate. This is one of those things that makes Lyme life altering. I just cannot expect that on any particular day I am going to be OK. If I cancel a dr. appt on the day I am expected to be there they may charge for that missed appointment. If I make a plan for an overnight at a hotel and don't cancel in time then I will pay for a stay I can't make. This is all very discouraging, but there doesn't seem to be a solution. Now, the doxycycline has shown what it can create in a side effect, dizzyness, I don't want to continue taking it. I would prefer a different side effect please!