my son gets so upset in his car seat.. In the infant seat I put him in it and he gets so upset, but most of the time when we get moving he is fine.. I tried a meenno cooling insert and it didn't help. He felt so hot I thought he was just over heating. We have a light show mirror and a fan for him to try to keep him busy.. I thought maybe it was the car seat so I bought a convertible and it's even worse in this one because he cries the entire trip.. I feel so guilty I don't want to leave the house.. He started doing this with his BOB stroller as well.. I am thinking it's the harness, but don't know what to do or if it is that.. Anyone have these problems and have suggestions?