you might want to look over a few things before giving it to a gunsmith or sending it off to Smith & Wesson. You say that you just picked the gun up so I am assuming that you have a limited number of rounds thru the gun.
If you look at the ejection port of your gun after firing a few rounds and see a brassy mark or rub spot on the lower rail of the ejection port then one of two things is going on.
1) Your Recoil spring is a little too strong and what is happening is when the slide comes back the ejector isn't getting enough force to throw the round out and over the lower rail of the slide and that is causing the kickback into your face / chest. (Most Probable from your limited description)
2) The ejector is contacting the spent case too high and is directing it over into the lower rail of the slide causing the kickback. (least likely from your description)
Best way to tell between the two would be if they are just barely getting to your face it is either a sever case of #2 and you will see a very noticeable mark on the lower edge of the ejection port or its #1 (this is my guess as my 9c and now my 9L are or were doing about the same thing) or lastly if they are going just right of your head and back with some force then it could be a mild case of #2. Another way to check it would be to run some +P rounds down the pipe and see if they eject normally. This would certainly show that it is description #1 a stiff spring. If they are still hitting you in the face just faster then it would point to #2 and just doing it with more force.
Without sending the gun off give this a try, it might help you out. Leave the gun in the safe with the slide locked back. Every time you walk near the safe or think about it go in and cycle the slide a few times and then return it to locked back. This is what helped my 9c over its tight spring issues during the first 350 rounds or so. I ended up doing this routine for about a week and a half or two weeks.
With my 9L I am just shooting through it as it is only used in IPSC and I don't mind not having to chase my brass all over the range. Haven't had a failure to feed or eject yet when working thru this with either of my guns that exhibited this.
Radioman
Edited to clean up some Neanderthal grammer and spelling.
