Same thing happened to me but it turned out my low D was making my calcium
high. My calcium
reached a 10.4
and my parathyroid hormone reached a 71 (65 being the acceptable limit). It is not always the parathyroid at the root of the problem.
For me, it was Hashimoto's. Hashi and parathyroid disease have similar symptoms, fatigue, constipation, brain fog, dry skin, achy bones and body, depression, weight gain, low vitamin levels, foot cramps, neck pressure, hair loss, IBS.