Motivation (where from?)

Wow. The last two days I've been SUPER motivated. Especially when it comes to exercising. On Monday I was kind of motivated. I did bike to the Coopers to get something and then Robert and I walked to the library and most of the way back to his house (his mom picked us up). Then we went to Classic Skating. At first I was thinking that it was a really bad idea for me to be skating when I could barely do so because of my shin splints. I've had them since high school and they enjoy acting up. They definitely were when we started skating. But I've learned to not let them beat me and just skated through the pain, and what a blessing that was! After about the first half hour, they stopped hurting! I was able to thoroughly enjoy myself after that.
That was all the exercise I got that day, but yesterday I biked to the library to drop off a movie, then down to where I used to work to return something, then back home (stopping at the Coopers to get a drink - I was parched!). All together it was 9.3 miles (I looked it up on Google maps afterwards. I was curious.). I also walked about half a mile and then roller-bladed another mile. I was feeling pretty god about myself by the end of the day. :D
Today I was planning on biking somewhere just to beat my record from yesterday, but I decided to clean up and move around my room instead. Trust me, that was a work out! Moving all four of my book shelves, plus my fridge, and my computer monitor (which is HUGE and weighs more than the fridge) was enough to get me sweating quite a bit. When I was finished and it was still only a quarter to five, I couldn't figure out what to do. So I made dinner. My mom was very excited about that since other than taking me to the store, she didn't have to do anything and just sat on the couch, reading a book. She's been wanting to do that for a while, but before Trina's wedding everyone was too busy for her to be able to take that time. I made chicken and rice (my second favorite dish), corn on the cob, steamed broccoli (one of my dad's favorites), honey wheat rolls (I was so excited that I found them in the freezer!), and some carrots for me (I don't like corn on the cob or broccoli that much) Everything was cooked practically perfectly! I take no credit for that, I think I got very lucky.
After dinner I decided that to finish off my day, I'd go for a bike ride. It was dark already and I don't know where the light for my bike went, so I just went to the track across from my house. 2 1/2 times around is one mile, so I rode as hard as I could for five times around. It felt sooo good. I've decided that whenever possible, I'm going to finish off my day like that.
I love these random times in my life when I'm totally motivated for no reason at all. Too bad it doesn't always last.