I always feel so tired. Even if I eat so much. After eating I couldn't easily digest my food. Due to which gas arises in my stomach. I don't do most of the daily work due to tiredness and indigestion. At the same tym I have gain so much weight. I couldn't understand whether all these leads me to sleepy or I am sleepy and lazy person that's why I have problem's like tiredness and indigestion. please suggest me some medicine for energy and digestion. Plzz help me.