It's been said that there are twenty four hours in a day, eight for living, eight for loving, and eight for sleeping. If you're sleeping twelve hours a day, you're missing out on one of those.
Excessive sleep can be a sign of a physical malady, or it can be from your state of mind. If it's physical, it may be something serious, such as thyroid, blood chemistry or other illness. Excessive fatigue can be the result of a compressed spinal cord.
I would get a thorough physical examination including blood work to rule out anything obvious. Then continue to follow your sleep needs and anything that aggravate it to see if there's something else going on.
Excessive sleep can be a sign of a physical malady, or it can be from your state of mind. If it's physical, it may be something serious, such as thyroid, blood chemistry or other illness. Excessive fatigue can be the result of a compressed spinal cord.
I would get a thorough physical examination including blood work to rule out anything obvious. Then continue to follow your sleep needs and anything that aggravate it to see if there's something else going on.