tired too much

I am 19 and work 3rd shift between 35-40 hours a week.  i usually go home and go to bed until around 2 or 3pm. it depends if i am working that night or not. because if im not working the next night i will only sleep a few hours so i can sleep at night  time. i usually sleep very very good. rarely do i have a night that i dont sleep well. my problem is that i am always tired. i can sleep like 9 hours in the day and 2 hours later or even right after i wake up, i am still tired. i know that sometimes there are sleeping problems associated with working 3rd shift but i have been doing it for months now. i am just always tired and if i get energy its in spurts then im back to being tired. lol its pathetic. I also know fatigue is linked to mono which i have had 2 times before but i dont feel sick like i would if i had mono. so if anyone has any advise please let me know.

[Gregg D Jacobs, Ph.D.]

You should be evaluated at a sleep center.

Dr. Jacobs