Sorry, I can't help you on this - but I think you've got more chance of sensible suggestions of help if you post a little more info.
What age is the car?
Presumably, it's not a Z4M?
And, most importantly, what do you mean by 'feeling strange'? Pulling, stiffness, heavy, light, inconsistent amount of assistance, reluctance to self-centre, reluctance to deviate from centre, affected by speed of driving, etc etc?
good luck