It may not replace a visit with a doctor, but the free app Ada may help you get an assessment of your health. Use it to check symptoms you are experiencing by answering interactive questions about your condition.
To get an overview of your health, you can securely enter your medical history, allowing a physician to access it to provide an assessment for you.
Ada was developed by a team of over 100 doctors and scientists. More than 45,000 users have given it a 5-star rating, so it may be worth a try when you experience mysterious symptoms.