Anyone else feel drained the next day after a big ride?

I got called off work yesterday but was already dressed and on the bike. I took the opportunity to take a ride up and around Lake Berryessa, probably 8 hours of riding total. Literally a perfect day. Today I’m off and I’m not tired, I just feel drained, like a used all my serotonin yesterday, like pizza+beer is great, but not compared to hours of twisties. via /r/motorcycles https://www.reddit.com/r/motorcycles/comments/galrcl/anyone_else_feel_drained_the_next_day_after_a_big/?utm_source=ifttt