OK so my last period ended exactly two weeks ago. I had a light(er) period then normal and it only lasted about 3 days. I didn't think was that odd since that was my norm for a few months about a year or so a ago and now my periods tend to last 4-5 days and occasionally 6. Nothing else about it was really out of place though. now yesterday I started bleeding again and I'm having all of the normal signs i usually have when i am on my period.

Now I have to state that in the past year my period has changed from having it start on(or within 2 days of) of the same day of the month it started the last month( I had this for a short amount of time maybe like 6 months) too having it end on the day i started the month before.

I am also I just turned 18 this and never had sex of any kind or on any type of medication or birth control. I started my period when I was 13 and have had a once a month type period since then.

This is the first time I have had periods so close to each other . So I must ask is this normal period adjustment issues like most girls have when they first start to have their periods or is it something more serious? Should I talk to my doctor? And could this have anything to do with having two colds that lasted a month that ended the week i had my last period and the fact that i haven't been sleeping right since I still was sick?