I doing 3 - 4 days commute of between 16.5 - 18.5 miles a day each way to & from work. I get up at 06.30 - 06.45 each day and I'm finding that come 7pm when I get home I'm shattered. Actually this week is worse but then I gave a pint of blood yesterday so that may explain this weeks early knackeredness. Typically I ready for bed around 9pm. Why am I struggling? I have upped my usual Soup and a roll for lunch far a Tesco pasta meal as we have a microwave, and two rolls with butter. I drink a pint of energy drink when I get to work so think I'm taking in enough calories though I haven't researched how much I may consume eating daily or how much I burn cycling.
Has anyone suffered this before and have any advise please?
Dave C