Zithromax Z-Pak and bloodstream

I was prescribed the 5-day Z-pack for bronchitis and after two days I quit taking it. I am not psychologically and emotionally perfect (who is) but this drug is causing extreme agitation, nervousness, hard intense dreams that leave me fatigued even after a full night's sleep, and depression with crying spells. I am aware that this drug stays in your bloodstream for a long time. It's half-life is 68 hours and after taking 500 mg. on Feb. 6 and then 250 mg. on Feb 7, I still have somewhat less than 200 mg. in my blood today, Feb. 13. Even at today's level I still have no relief from my symptoms and I am praying that this will all go away when the level of the drug gets to a certain point.
My bronchitis is gone and I am trying to live my life as if I have no symptoms (I teach 7th grade U.S. History) but I cannot ignore the fact that I feel like I am cracking up.
I am not trying to bash this drug. Most people are fine with it. Good for them. But some people have these types of problems because I have seen stories like mine on many internet places.
Hang in there anyone who is suffering like me. I hope it goes away and I can return to my life where I get nervous now and again and maybe once in a while I do not sleep well.
This is horrible.
Anyone who has gone through this and returned to normal please respond. I need to hear some good news.

I had a raging head cold, something that resembled a brocheal infection and a low-grade fever.

I'm on day 4 right now and really don't feel much better. My head has hurt the whole time and my fever has not gone away. This is probably just a flu, which Zpak does not fix, but I got the script because it was quicker and easier than telling me to chill out for the next 10 days.

I wish I could blame my woes on Zpak. I can't. I think it's the nature of the virus that is using my bloodstream to swim laps in right now. Hopefully time will be my ally. If not, this is living hell.