welcome to Healthcare Magic.
You appear to have symptoms are related to stress and depression
. Depression can manifest with not only psychological symptoms but with a variety of physical symptoms also like: gas problem
, IBS like symptoms, dyspepsia and medically unexplained somatic symptoms like abdominal pain
Excessive fear of cancer in-spite of reassurance by physician is a symptom of stress and depression, specially in presence of normal investigations.
It is better to get evaluated by psychiatrist
and start treatment accordingly. For long term control of depression following measures are helpful: relaxation exercise, medicines like SSRIs and non drug treatment like CBT.
Same time do some relaxation exercise like daily brisk walk, yoga and breathing exercise
, which will help you in rapid recovery.
Wish you all the best.
Dr Ashish Kumar Mittal