What causes tiredness and drowsiness?
Patient: I am 62. Male. Weight 13 stone. Height 6ft 2 ins. No medical conditions. I feel tired from 16.00hrs each day. I fall asleep in front of the TV. I wake every morning at 4.30. I am drinking twice as much fluid per day as 3 months ago. I do not smoke. I drink 10-14 units of alcohol per week.I take regular exercise. I feel blood tests might help. What do you think? Doctor: Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.  It is good t know that you have no medical conditions at present. But if you feel some changes like tiredness or sleepiness then surely you should go for a thorough medical check up to rule out any developing problem. Some medical conditions like thyroid disease, heart disease, diabetes, sleep disorders may cause fatigue or tiredness. These diseases are easily treatable with a few medications. Now, I don't say that you may have some of these but at your age it is good to go for at least thyroid tests & Cardiac check up. Some developing problem can be ruled out at an early stage & you can will be feeling fine very soon. Stay away from addictions & eat healthy.   Hope I have answered your query. Let me know if I can assist you further.