Any of you have mid-back pain with CFS/ME? It feels like my back muscles are sore when I move. It doesn’t seem to bother me at night while I’m sleeping or when I’m hunched over. Some days are better than others. It’s definitely a weird feeling. Not your typical back pain. It’s almost like the muscles are tired and sore from being tired. Had it for the last week. Is it a poor posture issue?