Some people have a sense of feeling sick (nausea) or actually vomit. These symptoms can occur separately or together and may indicate a problem which needs assessing and treating. There are various causes of these symptoms including a tummy bug (gastroenteritis), peptic ulcer disease, reflux oesophagitis or indicative of a blockage in the bowel. There is a very long list of causes of this and can also be caused by eating something that doesn’t agree with us, anxiety, an ear problem and a range of other things.