Doctor Justine Butler, Head of Research at Viva!, said: “Deficiency can cause serious problems and symptoms including extreme tiredness, pins and needles, muscle weakness, depression and cognitive problems.”
In 2015, the European Journal of General Medicine reported four cases of vitamin B12 deficiency patients “whose presenting features were drenching night sweats and fatigue”.
The first case was that of a 57-year-old man referred for assessment of three to four years’ history of “drenching night sweats” needing replacement of bed sheets almost on a nightly basis.
“The sweating involved only the upper portion of his body from the top of the head to mid-chest around the levels of the nipples and seems to be worse after drinking alcohol,” noted the authors.
READ MORE: Tinnitus could be a sign of a vitamin B12 deficiency – expert