Thanks for your question.
You should expect to have regular periods after stopping the pills if you were previously having regular monthly periods. If this is not the case, then number one possibility is a pregnancy
. You must rule this out by doing pregnancy test. However if your periods were not regular or you have history of prolonged cycles in the past you may have returned to your natural cycle after stopping the pill.
Symptoms you were quoting are all non-specific & do not indicate anything in particular if they continue you may see a general physician for a systemic review & if your periods do not return to normal spontaneously despite a negative pregnancy test you should consult a gynecologist for necessary investigation.