Unexpected unkindness within a church setting is a shock to the system. It is sad that 4 months later this is impacting on you. I don't know of any official counselling service for such an upsetting incident, but would urge you to share with a trusted sister/brother-in-Christ about what happened and how you are feeling.
Matthew 18 tells us to first try and sort things out privately with the person who has done us wrong. If that does not work, then we need another meeting with at least two other church leaders present.
Many years ago, I was given a piece of wisdom that has fared me well: keep your eyes off 'man' and keep them 100% focussed on the Lord. As none of us are perfect, people will always disappoint. We all fall short.
"Forgive us, as we forgive others ..." Easier said than done, when we are hurting. It is not something we can always do in our own strength, but we need Jesus to soften our hearts, as we must forgive. Sometimes it can take a long time. The only thing I can suggest is: Prayer, Bible study, the Holy Spirit and more prayer - plus, the supportive prayer of a trusted Christian mentor, or prayer group as they can pray into the situation, even when we can't do it for ourselves. We are assured that God will deal with all the 'stuff of life' we leave, in prayer, at the foot of the Cross. EDITED as the hyperlink did not work! Scriptures to 'cast your burdens' victoriousinprayer.com/16-scriptures-to-cast-your-burdens-on-him/ : 1 Peter 5: 7, Psalm 55: 22, Deut 31: 6, Matt 11: 28-30, Phil 4: 6-7, Matt 6: 34, Psalm 23: 4, Matt 6: 25, 1 Cor 10: 13, Romans 8: 35 & 37, Isaiah 12: 2, John 16: 33
A prayer: Lord God, we thank you for showing us through your Holy Scriptures that we can cast all of our burdens on you. Lord, you see my heart and you see the heavy burdens that I bear…OH God please take these burdens from me this day and replace them with your love, joy, and peace. In the mighty and precious Name of the Lord Jesus Christ.
God bless you.