need advise

Beatriz.
Okay so two months ago I had my period twice whithin 2 weeks 
And now this month I ended my period last week and I just started again today 
And this is not normal for my cycle at all 
Can anyone relate to this or can tell me what in the world is going on 
I haven't been that stressed for something like this too happen 
Nothing new going on 
Should I go see a doctor ?