I don't want to sound like a downer... but there is very little else
I can suggest here for you, Mighty.

I've given you links to show what is known about X and Levaquin so far. I would suspect there are other things that will be discovered in the future as well.

X is very dangerous. And its suppliers for it vary in quality and quantity in each tablet. You may get weak X one time and the next time it might be 10 fold. Since there is no control over this, and because other countries with no controls are main suppliers, we don't even know if X is contaminated or not.

Here is a Wiki link on Levaquin:
http://en.wikipedia.org/wiki/Levofloxacin

I do think it is rather early for atrophy. Atrophy usually takes longer to show up. You will have to seek expert neurological treatment from now on.

I hope with time you will return to your pre-drug use state. That is still possible.