Hi :) age: 20 (hemophiliac, lactose intolerant), symptoms (past few months, recently got worse): high heart rate (110bpm) and shortness of breath after little exertion (climbing stairs), heart palpitations! weakness, fatigue , and depression(!) inability to focus .. headaches, sensitivity to food (flatulence/ diarrhea ) cold extremities *extremely fit/active/athletic until recent heart rate and fatigue blood results: monocytes: 13.0% (!) bilirubin: 1.52 mg/dl (!) iron: 52 mcg/dL (!) HB: 15.8g/dl (normal) B12: 212 pmol/L (!) are my symptoms being caused by iron/b12 deficiency, or could i have mono as well? should i be worried about myocarditis (family history of heart problems)? what does the high bilirubin mean and is gilbert s syndrome a possibility? what further tests should i get done? -------------------------------- recent notes: high caffeine intake, high stress (student, recent exams), ritalin (10-15mg/day for fatigue/inability to focus during exams), ~3 cigarettes /week habit during exams due to stress (no addiction/withdrawal upon quitting when exams end).