Lack of energy,intermittent drowsiness, mood swings, memory loss, lack of concentration,

Hello,
Lack of energy,intermittent drowsiness, mood swings, memory loss, lack of concentration, heavy pulsating feeling in my solar plexis and the most uncomfortable feeling of my muscles or skin creeping, usually in my legs and between my shoulders. The latter tends to be more at night when I'm trying to relax and will only stop when I go to bed. It is so difficult to get an appointment and I just wanted to know whether these symptoms are related to the start of menopause and are there any ways I can prevent the discomfort and help the focus/lack of memory/ as this is becoming embarrasing at work and very frustrating as I knoe it is impairing my performance.
I hate having this slow empty feeling in my head too.
Hope to hear from you soon