Final answer:
The symptoms described may indicate andropause or male menopause. Further investigation is needed to determine the cause of the sensory symptoms. Consultation with a healthcare professional is recommended.
Step-by-step explanation:
The symptoms described by the patient, such as weight loss, lack of sex drive, trouble falling asleep, and feelings of fatigue and sadness, may be indicative of a condition called andropause or male menopause. Andropause is characterized by a decline in testosterone levels in men, which can lead to various physical and psychological symptoms.
In addition, the patient's report of pins and needles in his left arm and leg and difficulty feeling touch in those limbs suggests a problem with the sensory system between the spinal cord and the brain. These symptoms warrant further investigation to determine the underlying cause.
It is important for the patient to consult with a healthcare professional for a proper diagnosis and to discuss potential treatment options.