I agree about the weight thingy and age and I've been trying, unsuccessfully since being T1D, to stop the creep.
My insulin for a whole day depends but generally
Levemir =10units
Novorapid = 0units to an occasional and I mean very occasional 1 or 2
Last night was the exception when I woke sweating like a pig, heart hammering BG 2.1, over-corrected becoz I was scared, I've never been so low and felt so alone and fearful.
This morning naturally came from the depths to the giddy height of 13.8, just like
@helensaramay was saying. Madam yoyo better get a grip.