Melody Grossman, 32, a graphic designer and artist who splits her time between London and Berlin, has had emetophobia – a fear or anxiety of vomiting or seeing others vomit – ever since she can remember.

Although she is uncertain how the phobia developed, she remembers being “afraid of vomiting” as a child, and she said her last memory of being sick was when she was just six or seven years old.

Now, Melody said she thinks about her emetophobia “multiple times a day” – describing…