Really paranoid! I need help

I was tested positive for chlamyida 3 weeks ago, & I took Zithromax (2 capsules, 500mg) for it 2 weeks ago. But on the prescription it said take two tablets for one day, and I took one tablet and the other tablet the next. My symptoms went away and now they are now starting to come back. I had protected sex Saturday night. Every time he pulled out, he pulled his condom up to make sure it didn't pop. I didn't see if fluid come out of the condom at all & I made sure of that, but its 2 days before my predicted period and I'm having menstrual cramps & diarrhea but only blood when I wipe or a little blood here & there, never had this happen before. Normally when I get my cramps, I automatically get heavy bleeding too. Help me! I think it may be the bleeding in between period symptom from the std but im not sure. I'm calling my doctor today to see if they can give me another prescription again.
Asked Dec 01, 2014

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