I've been nauseous lately. I'm not pregnant.

If early pregnancy reaction causes nausea and vomiting, retching, etc., normal is in menstruation stop about 40 days will show, after examination ruled out pregnancy if there is always nausea retching and other performance, need to be alert is caused by stomach lesions, such as chronic gastritis, gastric ulcer, etc., especially the recent irregular eating habits are easy to induce stomach lesions. If the symptoms continue to worsen, those who still cannot improve after diet regulation can be properly examined by gastroscope, Helicobacter pylori to understand the pathological changes, combined with acid suppression, stomach protection, antiemetic drugs can get better relief.