There is also biochemical rationale for a link between fasting and hemoglobin levels [8], and an observational study of religious intermittent fasting demonstrated an increase in hemoglobin [9]
Atypical anorexia nervosa Patients with atypical anorexia nervosa, a subtype of other specified feeding and eating disorder (OSFED), meet all criteria for anorexia nervosa except that, despite significant weight loss, their weight remains within or above the normal range (American Psychiatric Association, 2013)
Many people seem to experience symptoms like those you mention - where it has been mentioned in posts my memory is that the individuals concerned report the sleepiness as something that continues as they move into maintenance shots
Average participants lost 24.2% of starting body weight, but individual results ranged from 15.8% to 31.4%
Mitochondrion 54 , 2640 (2020)