I'm gaining weight even after dieting. what should i do? what could be my health issue? i am now 28 yrs old woman

See a doctor: need blood work- especially low thyroid. Count your calories. Follow Paleo diet- High protein & low thyroid with a lot of vegetables & fruits. Drink 8-10 glasses of water & yogurt daily. Exercise daily- atleast 30 min of brisk walking,yoga etc

Get guidance: I trust your physician's checked you over for any possible health problems, including hypothyroidism and Cushing's. The key to managing weight is of course attitudes about food -- eat for any reason other to satisfy genuine hunger and you'll continue to gain. The harder you exercise, the more your appetite will tell you how to eat appropriately. Cultivate fitness-focused friends / activities.