After i eat, i feel this weird pain and an uncomfortable feeling in my stomach and heart especially after having fatty foods! can you pls help! thanks?

Indigestion: you may not be digesting your foods well. Important to chew each mouth full well - ie chew until it is mush and don't drink too much water w meal since it dilutes your digestive enzymes. You might first try chewing food better, and possibly some over the counter digestive enzymes eg papaya derived enzymes. Nevertheless you are young to have such problems - please see a health care professional.