Ok now,relax.First,you can't rely much on Internet.Second,here's a way to check whether your phone is genuine or not:
1)Open your phone dialer.Then press *#06#
2)You will see your phone IMEI's number.
The number would be have 15 digits eg. 35****[05]******* (those star represents other digits,which is individual and should only be known by you)
3)Check the 7th and 8th digit.If the 7th and 8th digit's value is 05(like the one in bracket above).Then you have a genuine one.If you have number beside those,than it might be an artifical product(not original).
Hope your phone is genuine.
#Learnt this from a friend of mine working at Sony.