You could have bronchitis or pneumonia. After 4 weeks, you definitely ought to get a chest x-ray.
It is equally likely that you have pertussis, commonly known as whooping cough. It may be too late to get benefit from an antibiotic, especially since you have already been treated with clarithromycin, but if you are desperate you may want to arrange for treatment with azithromycin.
Pray for yourself. This just makes good sense. Buy some quality probiotics, preferably a full spectrum one, not just with one type of probiotic. This will reinoculate your intestines with the healthy bacteria that you killed when you took all of the antibiotics and give you immune system a good jump start. ***@****