Roaches in a dream indicates filth and dirt. Your dream represents undesirable aspect of your life that you have constantly ignored. Now the situation has gotten worst as seen overrun by roaches.
Think about what the issues that have been bugging you and confront them.
Dreaming of maggots is very bad and should be analyzed carefully. Maggots represent the eating away of the dead, and thus destroying your sense of sanity. It is also foretelling of issues that are being ignored and which will catch up with you and likely to impart a destructive period in your life. Take care of your pending problems and stop maggots from coming into your dreams.
Dreaming of a bagpipe means something bad is about to happen. Be prepared to face the music as it gets louder and lengthier. The situation that you face will drag on based on the nature of associating itself to a bagpipe, and it will not necessarily be pleasant to your ears when you first hear of it.
A crocodile is a dangerous omen when it appears in your dream. It represents a task or obstacle that will be detrimental to your health. The crocodile will guide you towards the wrong direction till you fail, then it will snap you up. Expect to see bad events unravel right before your eyes. Paid attention to them very carefully as it effects you in negative ways unimaginable when managed inadequately.