Hello ma am and welcome. I understand how various factors can affect libido. It is true that stress, exhaustion, etc; can all result in a lowered libido. I would recommend you to try your best to arouse him sexually, work on yourself to make your appearance more alluring, and so on. I am sure you get the point. Along with this encourage your husband to exercise as this also helps, feed him a diet rich with aprhodisiacs and also see if you can trick him into getting a testosterone level (blood test) check conducted. Just take him to a doctor for something general like hemoglobin, blood group, etc; and request the lab technician or the receptionist to get a testosterone level check conducted using the same draw sample. Hope this helps. Best wishes.