Thanks for your question on Health Care Magic.
I can understand your concern.
First of all we should first rule out heart diseases because you are
obese and now a days heart problems do occur in young age.
So get done ecg and 2d echo.
If both are normal then no need to worry for heart diseases.
For healthy and active lifestyle, avoid
stress and tension. Be relax and calm.
Avoid large meals, instead take frequent small meals.
Drink plenty of fluids orally, keep yourself hydrated. Also take high fiber diet.
Do regular
aerobic exercise like running, cycling, swimming etc.
Don't worry, you will be alright.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.