Bad Days

So I had a couple of Bad Days on the weekend. It's really hard to want to even get out of bed on those days, let alone do anything at all, including going to the gym.
I didn't sleep well Friday so I missed my class Saturday morning, which left me depressed and feeling like I'd ruined the whole day. I know that's not a healthy attitude to have, but when it's a Bad Day, fatalist and self-loathing attitudes are extremely hard to kick.
Yesterday was slightly better, my fiance was with me all day and tried his best to cheer me up. We went for a small walk in the evening, which made me feel less guilty about not going to the gym either day. I often wonder what I would do without him, he's definitely my rock.
I know I can't run away from Bad Days, I will have them sometimes, there's not much I can do about that. I just need to be stronger than they are and bounce back, if not today, then tomorrow, or the next day.