Since gi endoscopy and cardiac status assessment are normal, I do not think you have much reasons to worry.
Regarding the CML, I assume you are not in the blastic phase, since your blood work is normal.
Ruling these factors out, there remains the stress factor as a plausible cause.
Visiting a naturopathy doc could help for toning up the general health..,however, I would advise you to get the blood work done routinely, so that any worsening of CML could be detected at an early stage.
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