You may have a vitamin B12 deficiency
Common Side Effects of B12 in Elderly Patients Vitamin B12 supplementation is generally well-tolerated in elderly patients, with most individuals experiencing no adverse effects whatsoever
One common pattern involves dramatic week one and two gains, a frustrating week three to four plateau, then resumed progress in weeks five and six
doi: 10.2337/diabetes.55.04.06.db05-1339 207 OMahonyFRazandiMPedramAHarveyBJLevinER
As of the 28 January 2025 revision it is indicated not only for glycaemic control in type 2 diabetes, but also to reduce the risk of major adverse cardiovascular events in adults with type 2 diabetes and established cardiovascular disease, and to reduce the risk of sustained eGFR decline, end-stage kidney disease and cardiovascular death in adults with type 2 diabetes and chronic kidney disease
The perceptual release theory also explains that when sensory input is reduced due to exhaustion or stress the brain fills in the gaps with internally generated images or sounds