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In all probability the symptoms (bloated, fatigue, dizziness (slightly) and sore left breast, need to vomit) are due to severe acidity with GERD. Take omeprazole 20 mg empty stomach in morning and see if it helps.
Log in your food intake and see if there is a co-relation to a particular type of food. It could also be IBS, Crohnâs, or celiac disease.
Since a confirmed diagnosis cannot be given on net please discuss these possibilities with your doctor once. Hope this helps. Take care!