I'm glad you made it through the day sillybilly!
I've been given a stern talking to (that was in April I think) about always using my sick time (my mindset at the time was
hey, we're given sick time, why can't we use it?!") - so you have my empathy there. That always killed the rest of my day; I'm so happy that you didn't let it get you down! Rock on!
Stick with it; you're doing great!