My stomach always makes noises and I don't know what to do. I get so embarrassed when I'm in lesson and in quite areas. I get really tense and sweaty and sometimes stop swallowing and breathing so when I need to swallow,  I pretend I'm looking for a pen in my pencil case or pretend to look through my textbook and bag which would make noises so that no one can hear. I've had this for around 2 years now and I don't know what's wrong with me but it wasn't before last year this year it's out of control. I can't even put headphones in because I feel like my stomach is making sounds and people can hear me swallow. I'm not sure if this is anxiety or ibs?