I have a 12 month old. Still breastfeeding, working full time. I'm overwhelmed, sleep deprived, and my moods are all over the place. I sort of go on for a while and then I explode. I get so frustrated and overwhelmed and start shouting at DH over seemingly a small thing because everything is so on top of me.
I was a bit up and down pre-baby but the Mirena coil solved it, I had it for years and it was life changing. It was related to my periods but I still don't have periods now so I should be more stable but I'm not. It seems to be some sort of sleep deprivation induced PND. It was pretty bad in the newborn days. DS only slept upright ON my chest for the first 6 weeks (reflux) so I basically didn't sleep for the first few months.
I mean, if I got some regular sleep, exercise, time off work, free money and more help with DS, I'm sure it would go away but none of that is happening any time soon.
Would asking the GP for sertraline help?