Transmission Problem

Hello,I have a dilema with my '97 blazer 4x4.When the vehicle is cold,it starts fine,goes into any gear,but hesitates bad.The trans fluid,filter were changed 7K miles ago,and fluid looks good.
Thanks :)

if it does that in fwd and reverse/// possible to be the pump,torque converter, or filter ///// if it does it ONLY in fwd OR reverse then a
clutch pack is in trouble electrically possible {pulse width module}
PWM malfunction // again pwm prob would affect fwd and rev.