sleep problems

hi folks
i have not used my lightbox for a couple of days as i go through phases of disbeleiving i suffer from sad. i went to my bed last night about 10 oclock really tired and i awoke about 2 oclock with my mind racing i cant get back to sleep despite being shattered, i also feel like i am starting to distance myself from everyone. i would like to know if other people that suffer from s.a.d have the same problems or do i have different mental issues. incidently i currently do not use meds.
thanks in advance

alright mate
i had been using a pharos max in the morming at 5.30 am for an hour and i had been waking up at exactly the same time in the morning for my lightbox. i missed a couple of days as i said before and although i have been diagnosed i sometimes doubt that i have s.a.d or that s.a.d exists and how severe it can be. the lightbox was giving me a cycle of getting up at the same time. but i think that without the cycle my lightbox gave me my body clock was non-existant, my body did not switch on in the morning or switch off at night. it was like my bodyclock was in limbo. therefore a totally broken sleep. does these symptons ring any bells?