Welcome to the site.
I am a psychiatrist and i believe i can help you with your query.
Well, after looking at your clinical scenario, one thing that stands out is that it is always the stress
in form of worry about your own health or health of a near and dear one ( most cases it is your daughter's health) that triggers anxiety which then causes physical symptoms of nausea, vomiting, indigestion, sense of sickness / malaise, pain abdomen, etc. You see Anxiety disorder is very capabl;e of producing bodily/ physical symptoms like the ones known to you by now so in your case it is Situational Anxiety disorder ( where the situation being health scare acts as a trigger to a series of anxiety propelled events ) that is causing such symptoms. Had it been physical cause then your body by now must have deteriorated to a inferior level of health, but this is not the case and you tend to get affected by poor health only sporadically in episodes thanks to your health related anxiety.
However, you may discuss with your doctor about getting an endoscopic examination so as to rule out organic physical cause completely from this clinical picture of yours which thereby will remove all the doubt about this being physical.
As far as management of this condition is concerned, you can choose an anti depressant like amitriptyline at dose of 25-100 mg once a day at night time dose or duloxetine at dose of 60 mg at night time dose , since these two tend to work well in such psychosomatic and health related anxiety conditions.
Other than this you can seek prescription of either clonazepam or lorazepam at dose of 0.25-0.5 mg for PRN use that is as and when required based usage of this drug which means you take it only.when such a condition occurs.
Apart from the drug therapy mentioned above, it will really help you if you can seek CBT therapy from a clinical psychologist who will make you learn via this therapy how to control your mind at times of fear or threat and prevent it from loosing its battle against anxiety and stress, in other words this specialized therapy will make you learn special coping skills which you then can apply on a regular basis to prevent yourself from succumbing to similar or any other stress related situations.
I hope this helps.
Wish you all the best.
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