My husband has suffered from exhaustion for a while now (overly), in the last couple of weeks he has begun feeling light headed often and doesn t realize it, but very anxious/irritable. He saw his pcp yesterday and was told it was from too much caffeine, I m worried there is something more going on. He has a severe family history of heart disease. Also wondering could it be blood sugar or testosterone? ?
Hi Thereafter going through your query I understand your concern. I would like to tell you that Excessive Affine consumption can lead to dizziness, palpitations, lightheadedness like symptoms and some serious health issues like trouble breathing, chest pain, hallucinations, uncontrolled muscle movements etc. kindly Chat Doctor.  Get an ECG and echocardiography done for essential heart check up and consult a physician if symptoms persist. Hope to have been helpful. Kind Regards