I Haven't Had A Period In 16 Months, Would This

I Haven't had a period in 16 months, would this consider to be post menopausal. my experience has not been great, bad night sweats, mood swings, hot flashes, depression and no sleep unless I take sleeping pills and then it's still not great. always tired and feel I don't have the energy I used to have. I work out 4 days a week 4 hours and have to go to work after that and sometimes feel like napping. It used to give me energy for my day to get started. I'm always bitching about something and have a great husband and son. My mom has issues and that has affected me so I try to stay away from her. It has helped but I still feel depressed a lot. Work is hard because no energy or sleep most of the time.