Psychiatric drugs can help, even though I didn't like my experience with them. BDD/height neurosis, specially for more average male heights, can be just a symptom of untreated, underlying issues like depression and anxiety. Not for everyone, but certainly for many.
Before recent events made my height neurosis/BDD flare up again, I used to get obsessive, self-hating thoughts about other subjects regarding myself. So I know my height neurosis isn't purely due to my height. I used to feel worthless as a human being before. Now I tend to just feel worthless as a man when the BDD hits, even though I understand rationally and logically there's no reason to believe that - you just can't control the "emotionally" part. Anyway, it's better to have this than what I had before, specially when CLL is a tangible prospect for my future, one that I can always leave looming in the back of my mind for reassurance.