Often a hysterectomy involves removing the uterus while leaving the ovaries in place. The ovaries are the primary source of the hormones that cause the classic PMS symptoms. So if they are still present, PMS can still occur.
If you did, in fact, have your ovaries removed and feel like you are experiencing PMS symptoms, there are a few other potential explanations. One is that while the ovaries are the primary source of hormones, they are not the only source. Multiple other cells and organs in the body also produce hormones that may cause symptoms similar to those one might experience with PMS.
In addition, there are other conditions that can cause symptoms such as bloating, irritability and depression, which may be totally unrelated to PMS. For instance, alterations in thyroid hormone levels or even serotonin can cause similar symptoms.
So it is absolutely worth talking to your doctor about an appropriate evaluation and possible treatment options.