Hitting shoulders too often?

[DecaBane]

my new spread is this

mon- back/tri's
tue-shoulders
wed-off
thursday-legs
friday-chest/bi's

it was this

mon-back/bis
wed-shoulders
fri-chest/tri's

I dont know if Im using my shoulders more now than I was before? my new split is using the 5x5 training, but when I start to bench press it hurts...and I try to REALLY warmup...its kinda sharp pain on my right shoulder...whats your expert advise?

DecaBane