Hello and thank you for requesting my help.
It sounds like you are having an anxiety attack. Anxiety can make you feel like you are having a heart attack because one of the symptoms is chest pain. If it does make you feel better, it is ok to be checked out by a doctor. But a majority of the time, most people find that they are experiencing anxiety rather than a medical issue.
There are many things you can do to deal with anxiety. Relaxing yourself is a good first step. Try deep breathing and releasing your muscle tension. Here is a resource to help you:
Distracting yourself also works. If you at home all day, then you have nothing to distract you from thinking anxious thoughts. Try going out, calling someone or doing something that will take your attention and focus.
Reach out to others and talk about how you feel. On line support forums and groups are a great way to find others who experience anxiety like you do and to get the support you need to help you feel better. Learning more about anxiety can help you a lot as well. The more you know, the more tools you have to help yourself. Here are some resources to help:
On line links:
The Anxiety and Phobia Workbook by Edmund J. Bourne
When Panic Attacks: The New, Drug-Free Anxiety Therapy That Can Change Your Life by David D. Burns
The Cognitive Behavioral Workbook for Anxiety: A Step-by-Step Program by William J. Knaus EdD and Jon Carlson PsyD EdD
Coping with Anxiety: 10 Simple Ways to Relieve Anxiety, Fear & Worry by Edmund J. Bourne and Lorna Garano