Zithromax Z-Pak and stomach cramps

I took z-pak this week, and I've had some stomach cramps. The first night I took it it was the worst, but they've gradually gotten better.
But does anyone know if it can cause vivid dreaming? Every night I've taken it I've had some extreme dreams (one included both Obama and my HS sweetheart, if that helps to explain how intense they were). Has anyone else had this problem? I tried to find out if this was a common side effect, but couldn't find anything.

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.

Day 2 (took double dose yesterday, single dose today) -- have developed pretty constant diarrhea and stomach cramps. This week has sucked. I have suspected strep, fever, bronchitis and some kind of flu? I just spoke with my doctor who says that it can't be the drug since it's only the second day. Well, your comments here and other web research offers a different opinion. The doc is blaming in on my flu, but I didn't have any stomach distress at all until now. I'm hypothyroid, hypoglycemic and very sensitive to medication. The last thing I need is to have to deal with diarrhea. It sucks because my sore throat has improved, and so has my breathing, but I get dizzy when loosing fluids, no matter how fast I replenish. Female, age 35.

I am on the 6th day of my Z-Pak and I have to tell you, I was scared to death to take it after reading all the side effects posted here. But like many, I would rather deal with diarrhea and stomach cramps than the inability to breathe because of bronchitis. So, I took my chances.....

I don't know how I escaped it all, but I did not suffer one side effect! I wondered if maybe the fact that I no longer had my gallbladder had anything to do with it. Who knows? I feel better and wouldn't hesitate to take it again.

I started feeling better on the third day and feel better more every day.

Thank you!

I am on my 2nd day of the Z Pak. I started it last night after getting the ok from the pharmacist to do so. I ate a small meal with the 1st two pills. I was up with stomach cramps and diarrhea all night long. I had to get up at least 4 times during the night. I was nervous to take my 3rd pill today but I ate some light breakfast and took it and I am at work now literally bent in half. I think for some people with more sensitive stomachs, this med should be taken with caution. I'm going to finish it since I've started it, but will avoid taking this again.