ozbod1

HI GUYS, just wondering if anyone can help, went to subaru as my engine light came on, the obd showed it had detected a misfire on cyl 1 and 3 but they couldnt find a problem so the reset ecu{it hasnt come on since} but im sure since that time when im driving day in 3rd gear at 3000rpm and go to change in to 4th the revs seem to stick for a split second or even sometimes rise up slightly for a split second??? like isay im sure it didnt do this before?? can anyone point me in the right direction....???? thanks in advance