Post-partum period feels too heavy?

N • Beautiful Nikolai born 12/29/17 👶💙 Lucca born 1/13/21🌻 In love and feeling myself 👨‍👩‍👦‍👦

I'm not sure if I'm being silly or not but I'm 16 months post partum and am in the middle of my second period after having my son. The first period was magical, and lasted five days with only two of them being more normal flow. My second one though, has been awful. I'm not in pain but it's been weird. I had spotting for two days and at the end of the second day, it seemed to be normal flow. That is until I bled through my underwear and had to clean myself up around 2 am. I woke up, put in a tampon and bled through it in less than two hours. Changed it, bled through that one in 3. Had a small gap of time where my flow seemed to chill a little but then last night, I felt it happening again at 12 am. Bled through my pad/underwear. I had to clean myself up and just wanted to sleep so I put in a tampon and used a pad. Woke up that morning and the tampon was saturated and leaking into the pad. I've already changed it 2-3 times today since waking up at 6:40 am and less 4pm. I've NEVER had a flow like this were I have had to double up. I started taking iron yesterday because I was getting a headache which seemed to help but I'm worried that this is abnormal? Or is it just my body trying to regulate again? Help!