What to do if i feel very depressed after cardiologist?

Not sure why you: feel depressed. If you are concerned about health problems - educate yourself about your condition. Find out what you can do to improve your health. Be an active participant in your wellness & your treatment. Share with loved ones. Be well.

Depressed: There are many possibilities and not enough room here to cover them. The other suggestion is quite valid. You might talk with the cardiologist and explore what in the interaction made you depressed. If misunderstanding is involved, perhaps the discussion with the cardiologist can help you get past that. If a cardiac condition is the cause, the doc may be able to help you get past or through it.