nancys –
Regarding the EMDR -- This is not an exact science and we are all different, and, reading between the lines, it seems like you would like some help with the early childhood trauma which is on your mind right now.
So, I think it would be OK to give the EMDR a try. But, I would still explain to her that she should only do 25% of what she would normally do with someone with your trauma, because you have the additional element of psych med w/d.
You could try it once and then wait a week and see how you feel about the session. I would not do too many sessions too close together until you see how it will effect you over time.
Regarding that therapist you liked and insurance – When you talk to your social worker, ask her if there is any possibility of extending your old insurance what with the new Obama Administration insurance laws. I don’t know how that works.
Regarding the Celexa -- I would start at 10 mg. Junior makes an important point – your system is more sensitive to meds now than in the past. You are understandably desperate, but I think the lower dose will give you relief. Try it first.