The probabilities are:
1. The infection chlamydia may not have been eradicated completely.
2. The infection could have remained in the adjoining areas or spread to the bladder.
3. The anxiety and apprehension may have brought out stress like symptoms which is making you feel like that.
Whatever is the probability the next episode of recurrence a Homeopathic medicine can be used like Cantharis, Clematis, Merc sol, Ac.nit, Calendula, Echinacea etc. which will improve your immunity to stay in check over the disease.