Unexplained Symptoms after partial hysterectomy

Patient: Hi there. my girlfriend had a partial hysterectomy last year at the end of september. she has started with menopause and most symptoms are there (mood swings, hot flushes ect.) she has morning sickness and we did a pregnancy test last week (negative) 2 days ago she stared lactating and her breasts are swollen and she is lactating. please advise?

Symptoms: Morning sickness, hot flushes