"Doctor dismissed my symptoms and concerns"

I have had nausea, stomach cramps, temperature and irregular bowel for 2 weeks. After explaining my symptoms the doctor said I had too many symptoms and I had too select one do I wanted him to deal with. It felt like he wanted me off the phone as soon as possible. He told me to log an issue in a fortnight if I still had problems. I'm likely going to pay to see a private doctor as I'm not confident in the diagnoses.