Thanks for writing in.
Considering your history, it looks like uneasy feeling in your chest could be because of indigestion
following sea food.
You can take capsule omeprazole
20 mg two times a day- 1/2 hr before meals.
Continue same medication for 1 week, it will help.
At your age, with not enough exercise; if chest uneasiness was not associated with exertion, palpitation
, sweating then no need to worry.
I hope I have answered your query. Feel free to revert back for further clarification.