In high school, I couldn’t make it up the 1-floor stairway in my house without having to literally lay down and catch my breath at the top. Nobody knew what was up at the time, but in hindsight, I know I wasn’t getting enough fat back then, and I also wasn’t eating right for blood sugar issues. I didn’t know I had blood sugar issues back then and I was eating tons of refined sugars. But it’ll remain a mystery forever.
There were times when I wasn’t sure I could make it to the top.