Welcome to Ja and thanks for this question. I'm sorry to hear about your symptoms. Actually there can be a number of conditions which can cause these symptoms. The first one which comes to mind is that you could have developed a condition known as inflammatory bowel disease. This would cause the mucus in the stools and also cause a problem like blood in the stools in some cases. This causes inflammation of the intestines. The diagnosis can be made with the help of a colonsocopy and also with the help of blood tests. The treatment can be with steroids and also sulfa containing drugs.
The abnormal heart beats can also be a consequence if this problem as this is an autoimmune
disease which can affect the heart as well. For this you would need to get an echocardiography EKG and a 24 hour Holter monitor done. Medications can be used to control the rhythm. Another thing which should be looked into is the electrolyte balance which can lead to this problem as well. These irregular beats are known as cardiac arrhythmias.
Yet another cause of these symptoms could be associated with a thyroid
problem which can commonly cause irregular heart rate as well abdominal pain. This would be diagnosed with the help of a simple thyroid function test.
Another cause of this could be associated with a condition known as pheochromocytoma
which is a benign tumor which produces an excess amount of adrenaline among other catecholamines. This would be diagnosed with 24 hour urinary catecholamines levels and vma levels. The treatment can be with various medications and surgery.
I would recommend that you first get screened for these conditions and if they come back as negative then we can look into other more rare causes.
Do you have anymore questions?
Please remember to leave a positive rating as that is how we are compensated for helping you today