I currently take Zoloft for day time anxiety and social anxiety and it works but As soon as the night hits around 9 pm the zoloft wears off and my  anxiety goes through the roof .my chest tightens,all i can think off is Going to sleep and staying asleep and waking up in time for work. and in result not being anble to sleep at all. .idk what the problem is and what should i do. talking to a psychiatrist didnt help.was thinking about beta blockers or taking a mild dose of xanax . any 1 else have this problem