My periods vary a lot in their flow, color, consistency. I am wondering if that means any thing. One month it will be normal, the next it will be smaller, darker, and just weird. Should I worry?
Without more information it is hard to know if this is normal for you or not. If you are on hormonal contraceptives, this can happen normally.
If you are not on hormonal contraceptives, it could mean you are not ovulating regularly and that could be due to hormonal imbalance or other metabolic problem. I would advise women's health evaluation to sort it out.