I am a 28 year old male, for perhaps the last 3 week s i have experienced strange cold sensations over my body, almost like a wet paint brush on my skin, accompanied by pins and needles. This usually manifests in my left arm and chest, but also my other arm, legs and back on occasion. I have attended A and E who performed blood tests and ECG which all seemed in order. Today I have experienced the cold feeling as usual, also manifesting in my throat , neck and nose. When I lie on my side I get a sensation that there s cold fluid inside my chest moving around. ....except these symptoms I generally feel okay, but I m kind of a bit worried about this now, any ideas?