Did you read the thread at the top titled "The Basics"? Some of your questions may be answered in that. Your doctor probably told you you would feel like crap because of the Herxheimer reaction, which happens when the bacteria die and release toxins into your bloodstream. Luckily, though, this only lasts for a couple days usually. If it lasts longer and you continue to feel awful on the antibiotics (especially if you have a rash or a fever), you should call your doc.
Yes, it's true that some patients are on drugs for many months (I was on them for two years!), but not everybody has to stay on them that long. It all depends on how you feel. If you're better after a few months, then you can probably stop the antibiotics; if you're still showing symptoms, then your doc will probably want you to continue.
There are also some natural approaches to treating bacteria (which I think you can also read about in that thread I mentioned). Some people have had great success with those, and some people have not found them helpful. It all depends on what you feel comfortable trying AND what works for you.
I hope this helps. Let us know if you still have questions! Usually this is a more active board - I'm thinking people were just out enjoying the weather this weekend or something like that. :)
Lyme and co-infections since approximately 2002. Diagnosed in 2005. Treated for two years solid. Diagnosed with Lymphomatoid Papulosis in October 2007. Currently back on abx.
Moderator for Lyme Disease forum