Zithromax Z-Pak and sleep

Taking Z-pak for the second time this week. Each day has gotten worse. I take them at night, figuring that the worst of the effects would be during my sleep. Well, that's not so. Starting about 9am each day, I get horrible dry mouth, chills, and pain in my chest that rivals any pain I've ever felt. I have trouble eating and I feel super weak - including some tingling/pins and needles in my hands and feet. It usually goes away by about 6pm and I start feeling better. I do take my Claritin at about 8am every day. Could there be an interaction? It seems odd that I feel OK on waking up, but feel terrible for hours after taking the Claritin while on the Z-pak. Has anyone ever experienced this? Any advice on how to handle it? I have company in this weekend and I can't even function to entertain them!! Thanks!!

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.

I have taken Zithromax before without any problems but this time around I have had difficulty sleeping, have felt extremely anxious and very emotional. I am also pregnant, but the week I was on the z-pak, was especially charged with emotion. I have also felt extremely fatigued and am having difficulty concentrating. Day 4 & 5 on the meds were the worst for me. Not sure why this drug causes these symptoms. Does anyone know?

While I have taken it before, I don't recall having anything but very mild side effects (maybe a little discomfort in my belly). This time, however, it is different and I am owing it to the beauty of aging. I just took the second of the three pills (and yes, I've had the three pill one before). My bronchitis is clearing but this afternoon I had really bad abdominal pain and I have a continuous headache in the back of my head, where my spinal cord ends. It is not as bad (so far) as the one I had with Biaxin (I refuse to take that). The only bright side is that it made it a really good time to join Weight Watchers because I do not have much appetite. I was able to sleep last night, at least, because my cough decreased. The verdict is still out on whether I would do this again. Problem is, I am allergic to Penicillin.