get in(to) a stew
To be or become angry, upset, agitated, anxious, or alarmed over something or someone. John is always getting into a stew over his girlfriend's late nights out. Don't get in a stew with me, I was trying to be helpful! I always get into a stew when I have a big meeting with my managers.
get (oneself) into a stew (over someone or something)
Fig. to be worried or upset about someone or something. Please don't get yourself into a stew over Walter. Liz is the kind of person who gets into a stew over little problems.