Delayed PPD?

Im 14 months postpartum and about a month ago everything just switched. I went from being perfectly fine to literally hating everything. Anything my daughter does annoys me. I never want to be around her. I hate how much i yell and i feel constantly irritated to the point i just want to scream and pull my hair out. I hate this feeling. This happened around the same time i stopped pumping. What is going on with me? I feel guilty and i want to enjoy motherhood again