Final answer:
Lincoln's symptoms, including the enlargement of body tissue and visual changes, suggest acromegaly due to a pituitary tumor. He should be evaluated by an endocrinologist for proper diagnosis and treatment.
Step-by-step explanation:
Lincoln's symptoms suggest he may be suffering from a hormonal disorder that is affecting his physical appearance, energy levels, and reproductive capacity. The gradual enlargement of body tissue, especially noticeable growth in the bones of his face and jaw, as well as his hands and feet, could indicate acromegaly, which is typically caused by an overproduction of growth hormone, often due to a benign tumor on the pituitary gland.
The low sperm count and issues with his vision, particularly blurry vision and double vision, can be associated with a pituitary tumor pressing against the optic chiasm. Lincoln should be evaluated by an endocrinologist who can request an MRI to check for a pituitary tumor and conduct further hormonal assessments to confirm the diagnosis.