Hi John. I don't think you should be overly concerned about these symptoms. They are quite common and typically benign. I see no red flags in your description. When was the last time you checked in with your GP?
Two years ago.
This would be a good time to get a screening exam and some blood tests.
It would be helpful to know your B12 level, your thyroid level, your hematocrit, your liver enzymes and your testosterone levels.
abnormalities in any of these parameters can cause profound fatigue and sleepiness.
most causes can be easily treated.
your GP might also want to check your heart to make sure it is working normally as well.
heart failure can also cause tiredness...this can creep up on a person slowly...the best test for this is an echocardiogram.
Many thanks. Will talk to my GP.