Oh my god.... How unprofessional!! I have heard of putting people at ease but that was something else. I think I would have made my excuses and walked out. How can he of been giving you his time and attention whilst on the phone... Disgusting.
I used diltiazem for a while... It worked wonders for me in the few months I could use it. I developed an intollerence to it in the end and had to stop.... But it gave me a brief bit of respite which was very welcome! I just applied a small amount externally morning and night.
Hope it starts to work for you soon and you get some relief
OMB x