Talk to Gynecologist on Lethargy And Body Aches

I am a working women with 9 to 5 job. I have 2 super active kids. I am busy throughout the day. Since past 2 months, i feel too lethargic and pains throughout the body. my Hb in 12 and TSH and TS4 are within normal range. In evening, I dont have enough energy to stand and i constantly push myself to work. my sleep is also disturbed since last month. I cant have sound sleep ans wake up tired and with body aches. Pls suggest something.