My wife went through a similar change when her Grandma passed. I suggested she see a counselor like I did. She went 1 time and claimed to be "fixed". Pffft, I don't think so.
She talked with her primary doctor and she put her on meds that have helped ALOT. It took a few different brands/dosages to get it right, though.
While counseling may not SEEM needed I firmly believe that it can help. I wish you the best no matter what you do.