OK, so I was working out and I burped. And when I burped, some acid came up, too. Is this normal? It scared me for a number of obvious reasons. I am supposed to meet some friends out right now but I am scared to death!!!! What if this is a sign that I am coming down with SV or am going to V tonight? My stomach is in knots, but I can't tell if it is just nerves. HELP!!!!!!!!!!!!!!!!