After a sleep, I woke up in the morning and found a vertical red mark between my eyes above the bridge of my nose. There is no external force. What happened? My waist still hurts a little a few days ago.

Hello, after reading the narrative, I woke up in the morning and found a red mark above the bridge of my nose. This situation may be caused by sleep.

Guiding opinions:

In this case, the first consideration is to press this part during sleep. Observe first, and usually go down soon. This has nothing to do with low back pain.