Postpartum hot flashes

Ever since my daughter was born almost a year ago, I’ve been having horrible hot flashes.

They were worse when I was breastfeeding, but they still haven’t gone away after I stopped.

They’re really bad in the morning, or when I’m active. Then when they stop I have chills because I was so hot and sweaty.

This has been happening for 11 months now.

Are they caused by postpartum hormones, or could pregnancy have caused me to go into early menopause?