We had a baby together (too) easily 4 years ago. He is healthy 44 year old never smoked and doesn’t drink, no injuries pains etc so we are shocked his results were so low. He did have the flu about 5 weeks before the sample was done but they said it wouldn’t make levels this low. What’s the likely cause and treatment? Is it reversible? We are just in disbelief things could change so much. Can someone help me interpret the notes too? Thanks