Thanks for your question on Health Care Magic.
I can understand your concern.
By your history and description, possibility of
musculoskeletal pain is more in your case because at your age of 22 years, cardiac diseases are not common.
But better to get done ecg to rule out heart related diseases.
If ecg is normal then no need to worry for cardiac diseases.
You are mostly having musculoskeletal pain.
So avoid heavyweight lifting and strenuous exercise.
Avoid movements causing pain. Avoid bad postures in sleep.
Apply warm water pad on affected site. Start painkiller and
muscle relaxant drugs.
You will mostly improve in 1 week.
Hope I have solved your query. Wish you good health. Thanks.