I Take Cymbalta, 60 Mg; Synthroid, Lowest Dosage; Vit D3,

i take cymbalta, 60 mg; synthroid, lowest dosage; vit d3, 2000; and buspar, 15 mg every morning. I get up, take the meds drink a cup of coffee and go back to sleep for 4 hours. I think the meds are causing the sleepiness. When i have to work, on Thursdays, I am not sleepy at work . I don't know why i am sleeping so much.