Hi. Welcome to JustAnswer. I am Dr Uzair.I am reviewing your post and will post back with your reply momentarily.
You should go to an urgent care immediately as you need treatment in a hospital setting.
Hope this helps.
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Wish you good health.
My pleasure to help you.
You asked me what you should do.
The most appropriate thing to do for someone who is having suicidal thoughts is to go the ER. This is one of the foremost indications for immediate admission through the ER in a hospital. Unfortunately, medical ethics dictates that we do not try to treat Suicidal tendencies over the internet. If you have any questions.
Having said that, all your other symptoms - chest pain, shortness of breath at your age also warrant a visit to the ER or the Urgent Care to rule out a cardiac event, which are life threatening situations and since this is a site for informational and educational input only, it is my professional duty to inform you that you should seek immediate help for this.
Let me know if you have any queries.