ok so i just been for a walk and started feeling really tight in my chest , no other symptoms , just chest tightness like i get when im anxious , although i didnt feel anxious , any way after i got home and sat down , i was watching tv and the tightness had gone but i got this weird tingling sensations across my chest that lasted about 10 or 20 seconds , again no other symptoms and not feeling particularly anxious ??? Anyone ever experience this , as its a first for me , ive been diagnosed with GAD , anyone , any ideas what made that happen .