Dear Jindøich << Therefore I often feel big presure, even pain on my solar plexus and I find it quite negative. >> I found stress, which is a response to fear, can cause the region of the solar plexus to tighten, even become sore if it continues over a protracted period of time. (Seems to be one of the body's regions, both muscular & energetic, which registers fear in a pronounced way) I remembered reading somewhere that soaking your feet in a bowl of very warm/hot water helps the solar plexus muscles to relax. I've found it to work rather well! (Neither a bath or shower has the same localised effect) A simple idea, but might be worth a try... R