how can i find out if i have it

My daughter was treated for depression for about a year before she is diagnosed with bipolar disorder.  Just like you she has pains, some without a known cause.  Other symtoms are hopelessness, fatigue, anxiety, and irritability.  Within the last months, she has racing thoughts, agitation, more aggressive/risky behavior (new medications also).

Her new therapist (dialectical behavior therapy) suggests that she should see a neurology.  Lots of things can look like bipolar-epilepsy, asperger's syndrome, thyroid disease, and possibly more. 

If your depression is getting worst, something is not working.  Some antidepressants don't work for bipolar depression.

Good luck,

  First, i hope you are being treated for your physical pain.

  your pain is probably causing most of your depression.

  you left a very short blog.  i dont think you have bipolar,

        But  if you cant get out of bed, even with the pain,

    you know , if your legs arent in pain,   to walk out of bed

 then your depression isnt good. maybe you could tell

 your doctor youre just too depressed. if he doesnt do

 anything, i d go to the hospital.