insomnia tiredness and more

[mubha]

will try and keep it to the point:

am taking lexapro, lamotrigine, lithium carbonate for depression, ocd and mod swings. also take others for thyroid, blood pressure, acidity, etc.  have been taking depression/ocd medicines for over 15 yers now, but they have been changed. wotk and sometimes exemplified for alertness and capacity for hard work.
lately find that i cannot sleep well  max. about 4 hours per night and this has continued  sometimes even late
earlier 11 PM  was reday to go to bed, now i am up till 2 am to get up again  at 5am for work

annual physicals are good

now I am conversing with the family say qt 8.30 PM  over dinner and fall off to sleep just like that   even at work  go to half-sleep and then wake up with a start--sometimes almost falling off the chair

coud you please help and advise  what is happening  is this physical   mental   neurological   i realise that age plays a part  but my health generally has been quite good

woud appreciate much your expert response
regards

[mubha]

thank you! is it all right to continue correspondence with one person
my doctor gave me lithium carbonate for mood swings, on the same lines as bipolar i think it is helping me but probbaly have time to go
i have done a little bit of reading myelf and have not found my syptoims as relating to bipolar, i mean if i very briefly doze off at work why woud that be  bipolar    bipol  is just that  for some time north pole and sometimes south polee  
my lifestyle other than age when i used to be at parties an wanted to get away at 10.30 pm so that i coud sleep by 11 PM  as i said earkier now AT 2AM i am not sleep

regards