Pretty much my experiences too. I had a couple of years burning my candle at both ends and I felt like what you described. Now, if I stay up late I invariably

Pretty much my experiences too. I had a couple of years burning my candle at both ends and I felt like what you described. Now, if I stay up late I invariably get bad eye inflammation - you can set a clock to it. It has been diagnosed by several doctors as an auto-immune reaction caused by the immune system failing. Neglect sleep and your body will let you know, probably before your good sense should have.