Thanks for your question on Healthcare Magic.
I can understand your concern.
No need to worry for heart related pain as your heart reports are normal.
Yes, possibility of
musculoskeletal pain due to pulled muscle is more likely in your case.
So follow these steps for better symptomatic relief in musculoskeletal pain.
1. Avoid movements causing pain.
2. Avoid bad postures in sleep.
3. Avoid heavyweight lifting and strenuous exercise.
4. Sit with proper back and chest support.
5. Apply warm water pad on affected areas.
6. Take painkiller and
muscle relaxant drug.
Don't worry, you will be alright with all these in 2-3 days.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.