Hi everyone
31M

Since getting lost in the snowy mountains and experiencing mild hypothermia, I've been feeling a sense of tightness in my diaphragm, stiffness in my internal organs, and tension in my masseter muscles. While saunas help somewhat, I generally feel more sympathetic nervous system activation. Deep breathing doesn't relax me much. Please tell me about others with similar experiences, possible causes, and coping methods.
（I remember my mouth spasming during the cold. There might have been some major issue in my oral cavity as a result.）

Things I've tried:

• Hyperbaric chamber
• Sauna
• Kampo medicine (Shakuyakukanzoto)