I think I may have a buffalo hump on the back of my neck? (photo)

I noticed this "hump" like raised area on the back of my neck slowly appearing over the last year, it recently got worse in the past few months. I am 23 year's old, 5'2'', and I weigh 170, I have been actively eating and living healthier for the past year, and i've been seeing a chiropractor for my chronic neck pain and my forward head posture. I was wondering what could be done about this unsightly hump?