I am sleeping 10 hours a night for the last 2 weeks. I'm not depressed or overly stressed. I have also had mild to severe headaches. Not sure why..

See your dr. You may be having headaches b/c you are sleeping too much. If you are tired, then you should see your primary care dr. for an evaluation and workup. If you feel depressed, I would ask your primary care dr. to refer you to a therapist or other mental health provider. It would be good to have an assessment to understand the cause of your excessive sleeping.