Could my tiredness (sleeping a lot) and and loss of appetite be due to iron deficiency. i've been really cold to and everyone else is burning up?

Fatigue is a non-: specific symptom that may be caused by iron (Fe) deficiency, but pain is not common. Fatigue & cold intolerance are common signs of hypothyroidism, but not anorexia or pain. Benadryl (diphenhydramine) can make you sleepy; Pepto-Bismol has lots of salicylate. If neuro exam, EEG & brain MRI are normal, seek evaluation for systemic disorders; if Fe-deficient, why? Depression can cause many of your symptoms, also.