I'm looking for an application to save all my health records, like if I had an appointment with doctor today then I can login into application and show doctor all my blood test reports, x-rays, CT scan and other medical records.
There exist several web services for patients to manage their health data, e.g. from https://www.healthit.gov/patients-families/maintain-your-medical-record:
The main issue is that medical data come with a variety of formats, sometimes proprietary.
Patients based in the US may request their medical records from their medical providers. If a medical professional fails to provide the medical records reading 30 days of the request, they violate the HIPAA. I've already filed 2 HIPAA complains: the law is clear. I encourage you to exercise your rights as a patient. How to report an infraction of the HIPAA requirements?