Zithromax Z-Pak and depression

Started the z pack for bronchitis and sinus infection. First symptoms was stomach cramps, diarrhea. The next and most disturbing symptoms were extreme agitation, anxiety, depression. Have finished the last of the medicine 4 days ago and am still feeling the residual anxiety, agitation, general feeling of unease. Will never take this medicine again.

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.

Severe fatigue, sleepiness. Depression which became severe by 5th day. Terrible cough especially at night. Also, problems sleeping, not being able to go to sleep at night or waking up several times as well as being terribly sleepy during the day.