First of all u must check u r b.p,Blood suger,Blood hb .If all things are normal ,then u should go for yoga
& Pranayam regulariy atleast for 15 min in early morning.
U will get result in first 8 days .Yoga ,pranayam will boost u r immunity also increas u r stamina of work.
U also use energy drinks like ors
water regular it help u .