Hello dear patient, you have rightly predicted that high I IgE levels like 2402 of yours are not normal and it can be associated with any other thing other than allergic reactions. But since you are having vomiting and chest pain there can chest related or abdomen related issues. It can be as simple as due worm infestation which can produce such symptoms and blood reports.
Next Steps
Take bandy plus one tablet in the evening, repeat the tablet after 15 days. Also take esomac D twice daily for one week. Follow up for further advice and discussion.