Just finished my spell within smaller amount than two weeks and a short time ago started again.i am alarmed,what should i do?

i usually have regular period after every 28 days.but the last one did not rush and last only three days.Just finished my spell within smaller amount than two weeks and a short time ago started again.i am alarmed,what should i do?
you don't mention your age, but it is not at adjectives uncommon to own irregular periods. Stress can inflict it, poor diet can cause, starting a hot exercise routine, all sorts of things can head a woman to have an irregular term. It is nothing to be afraid of. Just hold on to track. If they continue over the subsequent six months to be irregular then have a word to your doctor, there are meds he can present you to regulate them again.
If you are in your teens, this may be majority as your hormones are still fluctuating. Keep a calendar of your menstrual flow and other symptoms (headache, cramps, etc.) and if your irregularity continues for longer than 3 months, see a physician (preferrably a gynecologist) to rule out possible causes such as ovarian cysts. And don't be worried!
If you have be sick or stressed out that can throw your period out of wack or your cycle could basically be changing.