Hi. Thanks for your query. Noted the history of feeling unwell lately, have constipation, fatigue, dizziness and light headedness. Feels the heat and makes you sick. There is fluttering in chest and throat area, bloating in upper stomach and heartburn sensation. You then get anxiety when you are out. All these symptoms are indicating of gastro-intestinal disturbance. There may be gastritis with GERD and the colitis part causing other symptoms; altogether causing anxiety and related issues. I would advise you in such a situation the following: Upper GI endoscopy to get the proper diagnosis related to the bloating and heartburn. Get an appropriate treatment with a PPI and antacids and if necessary add on a prokinetic like Domperidone. Take a mild laxative to have soft and easy passage of feces. Take the blood, urine and stool tests to find any other associated reasons for the symptoms and get corrected any positive findings. Colonoscopy and CT scan of the abdomen if required to add on the diagnosis. This way you will get a proper diagnosis and a proper treatment.