I had seen your detailed medical history and understood all the relevant concerns. I can understand your discomfort and anxiety.
First of all i need to clarify some important aspects regarding your symptoms. The symptoms like nausea and diarrhea associated with
chest pain are most commonly seen in GIT (gastrointestinal tract) diseases or any GIT infections.
As you mentioned you were a smoker for 20 years, smoking effects not only lungs but also GIT. It can cause damage to the epithelium of intestines. As your GIT became hypersensitive to smoking you were avoiding. Mostly it might not be related to your brain. As your GIT was effected your digestion and absorption capacity decreases, so there might be
weight loss. It can lead to variation of sugar levels also.
By considering all the aspects of your health the most probable cause of your symptoms might be damage of epithelium or
irritable bowel syndrome. That was the reason you were repeatedly getting GIT problems (
stomach flu, GERD etc). Irritable bowel syndrome occurs in people taking more of stress in life.
You can confirm the GIT condition and exclude all other conditions by following investigations:
1.
Endoscopy or colonoscopy
2. Gastric function tests
3. MRI brain to exclude brain defects
Coming to treatment part
1. vitamin tablet is a good choice
2. better to have small frequent meals
3. taking less spicy food and avoiding smoking
4.
Omeprazole can be continued and
dicyclomine can be taken
5. Drinking plenty of water and relieve stress factors
As you are not too old, the epithelium will be regained. Go for investigations and act accordingly. If any abnormal thing is found you can consult us at any time.