8yr old who over steals,lies,screams,over reacts to everythign

[freddiesclaire]

i have an 8 yr old girl,she has a physical disability called erbs palsy(a paralysis to her shoulder,arm,hand and fingers),but dispite this,unless you actually know theres something wrong,you wouldnt notice because she copes so well.
for months now shes been stealing,can be anything from make up,money,but most often its food. she tells the most creative lies(shell be caught stealing but will swearblind she didnt,or even that she was in charge of her whole class and had to teach them,when challenged she swears its true).she even told me lies about her teacher and her school work.
everything is drama and dramatics,she over reacts and becomes angry at everything. she was caught stealing last night and when asked about it,she started screaming and backing away from me screaming,dont hurt me. (she doesnt get smacked as a punishment)
my hubby and i are at the end of our tether. weve tried reasoning,explaining,ignoring bad behaviour,praising good,nothing seems to work. i am so worried,i have considered that shes being bullied,but theres no evidence. weve tried our gp,thinking maybe it was adhd or something similar,but both gp and teacher reckon theres no evidence.
any help or suggestions?

hi there , i certainly am no expert or doctor , but what grabbed me was the "she copes so well " maybe shes starting to feel different from her peers in herself and yet gets treated the same so shes confused ? on the other hand my friends 8 year old steals and is a otherwise angel and my friend finds it baffling as to why she does this , my step daughter who is now 10 was/is a seasoned liar from the it wasnt me ...to the lying to friends saying she done this and had this so on so on , i think its a awkward over-looked age in the sense of they not babies but not grown up , if i was you i wouldnt worry to much as ive heard and seen similar behavoir from lots of 7-10 yr olds ....hth's?? , p.s sorry for the crap grammar xx

thank you xx