It's very hard time for everyone but things are not in our hands. We only can pray for each other's. I heard it's happening because of new government and its immigration policies. This government party never like immigration in there country. In my knowledge of last 10 years any petitioner making good money in USA always get visa right way. I never heard parents, kids and strong sponsor visa stuck in AP, even though K1 visa never denied. But in 2017 who ever go for visa interview in Islamabad all saying same thing that embassy cannot give us visa because of this or that reason. So take deeeeeep breath and relax my brothers and sisters.