What Does Periods Look Like What Exactly Does Spotting Between Periods Look Like?

What exactly does spotting between periods look like? - what does periods look like

I had a little blood spotting after my period and lasted the whole month until my time in this month.
I started seson about 2 1 / 2 months, and I thought it was normal, but the last two periods were very painful, and I fear that I lost much blood, but you can not say.
I am very bad cramps in my left, and I feel a little dizzy and weak, or so ..

What is wrong with me?