When it just doesn't feel right...

Don't you hate it it when something just doesn't feel right? Especially when everything else is indeed right.. and you have no issues.. but you just change one minor element and suddenly things aren't so right anymore... and you hate to think that way about a situation or a person but you know deep down that it has the potential to go very wrong.... and you don't want to give up on all the other parts - the good parts.. but you know you have to watch one certain part so closely..... because it just doesn't feel right.....