Howdy. So...I've been working a lot, which is great exercise, but hubby has been driving me when I work evenings so I don't have to ride my bike home at midnight. So if I work during the day, I HAVE to ride my bike because hubby is already gone with the car before I take the kids to school. But the last few months, it's been SOOOO hard. I thought I must be going crazy...suddenly it was taking me 30 minutes to get to work when it used to be only 20. And when I got there, I was so exhausted and out of breath. My tires seemed low on air so I kept trying to pump them up, but couldn't get any air in them, so I assumed that they were fine and it was just how big I am and that I was just in horrible shape which didn't make much sense considering how much walking I've been doing. Then I had to take DD to the dentist last week and she said my back tire seemed almost flat...but I had JUST tried to pump it up the week before. So when we got home, I tried again...still nothing would go in. So then the next day it was DS's turn at the dentist and on the way home, a bus driver stopped to tell me my back tire seemed flat. Now, I've been having to walk my bike up the 2 big hills every time because I could NOT bike up. And even biking on a flat area was exhausting to keep pedaling and I started having problems with my knee and had to keep getting off the bike to walk. So when the bus driver said that my tire was flat, I immediately took my bike to a shop and he pumped both tires up for free. It turns out the valves are broken so that's why I can't get air in with a hand pump....but his pressure hose pump worked. Today I rode my bike and made it up both hills, never had to walk, and I made it to work in 20 minutes without hardly breaking a sweat. I wasn't out of breath and didn't feel like I had just run a marathon. Holy cow, what a difference!! I actually felt GOOD when I got to work...like I do when I've done a workout. Like I can feel that I've used the muscles, but in a GOOD way. It was so nice. So I'm NOT in horrible shape...it could be better, but it could definitely be a whole lot worse!