I, too, was recently diagnosed and have been on Doxy for 5 weeks. I don't have any great answers for you, but I can share what I've been doing. I started with two weeks of 100mg of Doxy, 2 times a day, and changed to 300mg a day after 2 1/2 weeks. I started noticing some changes after about two weeks. It started with the small stuff. The head fogginess and head pressure got much better, and the stuffiness in my ears went away. I was also experiencing shortness of breath, air hunger random waves of numbness...arm, face, chest, and parts of my leg/s. They've pretty much stopped. I still have ringing in my ears, hip pain and interior vibrations on my left side. The level of the vibrations has reduced, but it's still my worst symptom. Some days, my hip feels good, and other days it's quite painful.
I seem to be having more good days than bad, but sometimes I feel like things are slipping backwards, but I still feel much better than I did five weeks ago. Since meds, the ear ringing started and I've had some headaches. When I was well, I rarely got headaches, so I think the meds are doing something.
All of these little changes are still easier to deal with than what I started with. Next week, I'll meet with my Naturopathic doc to review my treatment plan.
Try to think of some of the little things that were a bother, and figure out if maybe they're slipping away without being noticed. I've read that it can take months for some meds to kick in. I'm sure more members will chime in before too long.
Keep us posted as to how you progress. Good Luck.