Hello and Welcome to HCM,
Thanks for writing to us.
Do deep Breathing exercises so you can do them automatically when you get anxious.
Inhale deeply through your nose so your stomach expands, exhale through your mouth so your stomach deflates.
Do each for a count of 3...rest for 3. Practice for 5 min. at a time.
You may want to seek short term counseling to help you learn new ways of dealing with your stress.Go to a professional social worker or psychologist.
Make sure you stay well hydrated.
Listen to calming music, drink chamomile tea; speak to YOUR friends.
You ought to go to your MD for a check up & blood tests just to make sure it's nothing physical. You may want to consult a psychiatrist for medication to treat you.
Hope this helps you.
Wishing you good health...
Regards.

Hello dear sharan
Your friend will survive for normal duration of life. High BP can be managed. Other causes for fainting need be eveluated if such incident occurs again.CT or MRI may provide cause. Advice him to destress , have normal exercise and healthy diet.

1. you haven't mentioned about the cause of emotional upset or stress, is that was due to some relationship problem,parental problem, financial crisis,any sad news, examination pressure,any anxiety or panic disorder, due to use of some medications, or perhaps due to Over exhaustion???
2. any cardiovascular abnormality detected by the Health Physician?
3. although medication was given to control his blood pressure (as said by you) but it is not clear,whether it was given for high BP or Low (please mention the BP reading of that time)
4. Stress will not cause coma unless related with any Systematic disease, (hypertension, diabetes, Renal) but can cause Catatonia, consult with your doctor for any further investigations like ECG, USG of Kidney, TFT
5. take diet rich in Vitamin D and Vitamin B complex along with omega 3 fatty acids (DHA,EPA)
6. Avoid the Emotional trigger (if possible)
7. take anti oxidants like Walnut, Almonds, Pistachios which also work as Immunomodulators (on Immune System ).
8. calcium in milk and other sources helps in reducing muscle spasms and reduce emotional tension.
9. to achieve a healthy life style, not just medicine but he has to focus on his emotional component also,yoga and meditation will help in attaining the positive attitude,and keep remaining calm and stress free.