Hi , i am a diabetic type 2 coming to sixty years old. why do i feel very tired & sleepy most of the time ?

Many reasons: The most important is 1) heart disease...Get a stress test 2) renal disease ....Urine & blood test 3) uncontrolled diabetes ( hba1c check) 4) circulation problems get a complete check up with your doctor.

Many reasons: Aside from what had already been recommended to you by dr. Allam, i also recommend ruling out thyroid disease and especially sleep apnea. Sleep apnea can cause all the symptoms you described.