I think it's important to keep perspective. There are people reading this forum who have just started Levaquin or it has just been prescribed to them. Keep in mind that everyone posting here did so because they had problems with Levaquin.
There are far more people who have taken it with little or no side effects, and chances are, you will be one of those people. I just completed a 10 day course of 250mg for acute kidney infection, and experienced no side effects at all.
I have no doubt that this drug does have extremely horrible side effects for some, but listen to the diagnosis for many of these people. Sinusitis? It's the most common diagnosis in doctors' offices each day. And many foolish doctors are prescribing something this strong for sinusitis. Thousands of people start this medication each day, and most will not have problems. If everyone had problems, you'd see thousands of posts each day, a class-action lawsuit would have been organized, and the drug would be off the market.
Eventually this WILL happen, but because the side effects happen to so few people, it will take years to amass enough participants to make it worth the expense an attorney will have to front to take on the company.
This is what really scares me. Reading page after page of awful side effects can actually cause someone to manifest these side effects phychosomatically in their body. So if you're reading this after just having started Levaquin, DON'T LET YOUR IMAGINATION GET OUT OF CONTROL. It's not likely that you'll experience what these people have.
If you do, be responsible, report it to your doctor and to MedWatch.