Actually the plural of haiku is haiku. And in Japanese, words have more syllables. The word Geisha for instance in English has two syllables, in Japanese, three. A Japanese haiku is thus much simpler, very spare, with very few words. An English haiku with about 12 syllables is more in the spirit of a Japanese haiku.
I haven’t written any haiku about diabetes! I find it hard to write about my own problems. But I’ve enjoyed reading.