What causes lower stomach pain?

You mentioned numerous problems that have tortured you in the last 2-3 months - like nausea, fullness after a meal, and heartburn. That can be a sign of anxiety. However, you say that they tend to become aggravated during high-pressure situations such as exams that may lead to that. Anxieties can lead to digestion problems and anticorrelated symptoms. Do some techniques like deep breathing or walking to reduce the stress level. Smaller and more frequent meals can also be of help to avoid your pain. 

FATIGUE can be caused by many factors including stress and poor sleep.. Sudafed can cause low heart rate DESPITE caffeine consumption.. However, there may be underlying medical conditions causing FATIGUE and low heart rate.. It's best to CONSULT with a doctor to determine the CAUSE of your symptoms..

There could be many reasons for gas and acidity after bypass surgery, including diet changes, stress, medications, or surgery itself. Some of the symptoms can be bloating, burping, and heartburn. It is important that you advise him to take smaller meals, steer clear of spicy foods, stay upright after eating and ensure he takes sufficient water. In case none of this seems to help then do not hesitate to contact his physician immediately.

Liver enlargement may lead to splenomegaly, and your blood circulation might have some problems that are classified as portal hypertension similar to that of laughter: Green liver, failure of the gallbladder, and stone cause it. The important thing is to adhere to a diet of foods low in fats and sugars and follow doctors' instructions. The size of a liver can be a major problem, which brings the liver to the spleen which may need bigger. It is advisable to take regular ultrasounds and CT scans.