How do you know if you have a problem with bitterness?  First of all, bitterness is that feeling of not only anger, but a heart that wants to hang on to the anger.  It affects not only your relationship to the person with whom you are angry, but it soon begins to affect your attitude and relationship with others, as well.
If you hold on to bitterness, you will be in big trouble.  Let?s see what the Bible says.   Hebrews 12:15, TLB.  Look after each other so that not one of you will fail to find God?s best blessings. Watch out that no bitterness takes root among you, for as it springs up it causes deep trouble, hurting many in their spiritual lives."
How can I get rid of a bitter spirit?  You can get rid of bitterness the same way that you get rid of anger or an unforgiving heart.  Go to God with it in prayer.  Ask Him to take away the bitterness and replace it with a forgiving, accepting and kind heart.  Don?t give up until He does what He has promised!