Been out to look today...
Checking just by sight its hard for me to tell as i'm not sure what im looking for exactly. The two pictures below show either sides arms, now the first pic (the side with the problem), the arm appears to be angled down more so that the other, but its hard to tell.



Took closer pics of the arms/joints to see if anyone else can spot anything untoward...




Also as someone mentioned on another site, this doesn't look right either...