Its probably the bipolarness, its messes you up sometimes. My ex bf was bipolar (i'm not) and he'd always feel tired and sick no matter what, mixed with his ADHD, it was kinda...intresting. He has meds for everything, it took a while for the doctors to get the dosage and everything right, but you could consider sleeping pills, i'm on them and i feel so much more rested in the morning, and sleep better too. The anxiety and concentration in just cause you're depressed, because of being bipolar. Don't take my word for it, but that's my opinion