Hi all, im feeling really low right now and keep having panic attacks and feeling light headed. It started last thursday night, i had diarrhoea for a few hours that night quite badly i think, then a small bit the next morning. it stopped and i was fine for a few days but tonight i had another little bit and my anxiety being what it is i freaked out again and looked it up in a medical book and it said all sorts of things and im really worried. i dont have any other symptoms apart from feeling lightheaded and a bit sick but i think i could be making myself feel that way with the panic attacks. im very scared right now that i have I.B.S or cancer or that i might faint (thats a huge fear of mine) or something else and i was also really scared when it first started. i would just like to know if anyone else has had it like that or what it could be cos im really freaked out.