Jana Duggar absent in Michelle Duggar birthday posts, 'Counting On' fans explode

 In order to count in the "Counting On" #Duggar Family, you have to either be married, courting or one of the "19 Kids and Counting" under 12, it seems. Case in point is Jana Duggar [VIDEO] who is left out of so many adult sibling activities except as the DB (designated babysitter). The eldest, single daughter incensed fans being relegated to kid care at the wedding of Joe Duggar and Kendra Caldwell when even Anna and Josh Duggar got to join the grownups. But she was also absent in birthday wishes to Michelle Duggar. Has the girl finally had enough of playing mom?  Jana Duggar absent in Michelle Duggar birthday posts, 'Counting On' fans explode