Vet techs/cat experts-kitten question,please reply?

i found a starving kitten ,about 5 weeks old at the time.she had immediate vet care and has been doing gr8.about 9 weeks old now.last night and this morning,instead of her usual ravenous appetite,she has eaten a few bites and walked away.i am concerned.yet,she is playing,running around the house like a mile a minute,no discharge from eyes/nose/mouth.no sneezing.no lethargy.acts normal.just eating less.i have been feeding her about a tablespoon of wet/dry mixed kitten food 4x a day.she ate about a teaspoon this morning,not hungry now.we have only one car,and my husband is working till 8 tonight,the vet will be closed when my husband arrives home.we can take her to the vet b4 work 2morro.i am off 2day,but i am worried sick.am i overly concerned-or does her sudden decrease in last 2 meals mean she is getting sick?there is no one in this neighborhood or anyone that can take us to the vet till 2morro.is this bad or normal or what?any help greatfully accepted.please dont say u should not get a pet if only one of u has a car,we FOUND her,and saved her from death.we will keep her for life,which is more than the person who dumped her on my porch was prepared to do!(dont mean to sound cruel,but a lot of people on this site get sort of mean sometimes.)i am the responsible,worried one.the person who is bad,is the person who left her ,starving on my doorstep!