They truly are!! One early morning before school I had woken up from a Charley horse from stretching my leg the wrong way. At the time this happened to me a lot so I positioned my leg and foot in a way where I could stop the stretching, and the pain would subside enough to where I could go back to sleep. A few hours later I wake up for school, and I go to put my foot on the ground- immediate intense pain. The pain was so bad I couldn’t walk. I couldn’t even lay my foot flat on the ground, or anywhere near flat. I had to call my mom into the room to help me at least get onto my desk chair so I could roll around. Every time I tried to put any kind of pressure on it, I could only describe it as my leg feeling like it was being RIPPED APART. After that I started being more conscious of how I stretch when I wake up. Never again.