You've just gone through three of the most stressful experiences life can throw at us AND you're dealing with menopause as well............I'm only surprised you haven't burst into spontaneous combustion!
And you wonder why you're feeling tired and anxious? Good grief, woman! You need a long vacation to absorb everything you're trying to deal with at once. In my humble opinion, you are just overwhelmed and exhausted. Everything you are dealing with is going to take time to adjust to. The loss of your relationship, even if the decision was mutual and for the best, it's still a major adjustment after five years to return to the life of being single. A new job, even one that you are very comfortable with and obviously good at is going to take time. A new move is stressful even if it's just across town, but if you're talking a major move, to a new city, major adjustment. And menopause........what comes after a trifecta? Because whatever that would be, you just won it!
I would suggest a good physical check-up to rule out any organic reason for your tiredness and a long talk with the doctor about your feeling anxious. It would be my guess that your "perscription" is going to be some rest and relaxation. If that is just not possible right now and these feelings do not start to abate once you get a bit more settled, then possibly a short course of therapy may be called for to help you through this rough patch...............especially when you say you have very little support from family.
You are obviously a very strong, intelligent and self-reliant woman and you'll be fine. Right now you're load is just too heavy. No shame in asking someone to help you carry it for a mile or two.
Peace
Greenlydia