Why does my heart beat fast after a little exercise?? why do i always get pain on my left side of the stomach everytime i get nevours? why does my body keeps on getting thin along with the palm lines??

The heart rate normally gets faster when we exercise. I am not sure how fast it is going or the details to further address this question.

It is not feasible to provide a meaningful opinion without taking additional history, physical examination and may be some tests. It would be prudent to see your doctor and discuss if you may be depressed. Counter-intuitive as it may seem, exercise may help. Start with low intensity exercise such as walking and gradually increase the intensity as tolerated. Drink more water. Wish you good health!