You are suffering from stomach pain for the last 4 wks. You have done blood tests and X-Rays - No abnormality found out.
As you expressed vaguely stomach pain - possible, commonest causes are taken into account.
to arrive at a diagnosis
- Plain X-Ray abd. in erect posture + USG + clinical examination
Stone - plain X-ray KUB area + USG + History of pain and radiation
+ urine analysis
The more reasonable cause is Peptic ulcer
- which could not be diagnosed by X-Ray or Blood test
it can be diagnosed by the way you express your pain and its relation with food, your diet habits
and tobacco etc., + clinical examination and if indicated Endoscopy
If you treat the cause of pain you will be alright. As your drs have told you may have anxiety about so many factors which may be the cause of headache.
If it very severe, one sided then - migraine to be ruled out.
Eye test - if indicated