A bit scared about my monthly periods

For the past 4 years after giving birth, I haven't experienced yet a normal menstruation. For the past years, I could only count how many times I had my period. There was a time that I haven't had my period for almost a year and this thing really scares me. Last year, if I remember it right, I just had 2 periods, that each menstruation lasted for weeks and it's truly scary.

This year, I only had one menstruation and that was 2 months ago, that was just slight bleeding that lasted 2 days. And after a few weeks, I had spotting and until this month. I really don't know if what's wrong and it really scares me. I'm also not feeling well.

I have read that after you gave birth, it takes time for your menstruation to go back to normal. I have read some testimonials that they haven't had periods for years after giving birth and this is due to hormonal imbalance.

I'm really hoping and praying so hard that this is not a serious illness and this is just due to hormonal imbalance...Oh Lord Jesus, Please do Help me...I'm just a bit scared and very much worried....