not seeing boost....help

[1_Stealth_Z]

So heres the story...Sunday I left for a trip (4 days) and the car was driving fine boost and all. I get back Wednesday night and the car wont go into boost...I can hear the wastegate let off some pressure for a brief moment under acceleration but then I get no boost....then when I let out of the throttle I can hear the wastegate sputter again. Im not the most technically inclined person when it comes to workin on my car....I know I know before I get blasted about how I should know more about it could you please offer some sound advice or opinions before I take it in to shop and have to pay a few hundred bucks for something simple. Thanks for the help in advance.