这不是连用,个人负责个人的部分；
after 负责being in the hiding place since July 全部
since July 只修饰being in the hiding place
把长句拆成小分句就一目了然了：
she was in the hiding place since July
自从七月以来,她一直呆在（避难所）藏匿的地方
after being in the hiding place since July
自七月呆在避难所之后
how she felt after being in the hiding place
呆在避难所之后,她是什么感觉
how she felt after being in the hiding place since July
自七月呆在避难所之后,她是什么感觉