Hi All
Thanks for your honest replies.I shall attempt to answer some of your questions!!!
We did actually do a lot of research before we got the dobermann pups. We were at it for nearly a year!!We even researched their bloodlines and temeperaments! We had the house dog proofed as well!.We knew it wouldn't all be plain sailing.My partner had the an accident at work after we got them and basically broke his hand. I was left doing a lot for them.Obviously i didn't really mind, sure what can you do?I know suffer from agonising shoulders and chest muscles.
As to the suggestions for entertaining them we do all that!! ...kongs with peanut butter...parks...running...frisbee too and training...they do know their obedience commands.Most of the time they neglect to acknowledge them!!
There was a suggestion to get a trainer to observe myself and Sheera and i think i'll go with that as a last resort.
I am used to have large energetic dogs. I grew up surrounded by them!!We kept Setters and G. Retreivers and little spaniels and a german shepherd.
I wasn't completely blind!
I think mayb it might be the fact that i can't give her as much freedom or leeway as i gave my dogs growing up. People don't tend to be a scared of a golden retreiver wanting to play with them as a dobermann!!
I'm going to give it one last try and if things aren't improving i may have to rehome her.(and mayb try some pick me up for myself a few more ideas on special training aides, I already use a under the leg pinch harness)

Thank guys, you were really helpful and honest.