First I want to know whether u r male /female age group. why because depends on that treatment advise will differ. As you said drinking more . Confirm it whether u r taking at least 4-5 liters of water.(during summer). (Normally 3-4litres) don t drink cold and chill water from refrigerator.as per Ayurvedic concept we should drink so hot r so chill water. warm r mild chill water advised take oil bath with sesame oil twice in a week. make the day free. get up at 6 clock and apply oil in ur head and apply it on the whole body (specifically in arm pit,anus,umbilicus,genitalia) leave it for 30 minutes and take bath in warm water. with herbal powder.take steamed food.no oil and complex food. dont sleep in day. go to bed earlier around 8 clock at night. the whole day dont travel a lot. this mechanism will regulate Ur internal organ to get refreshment and physically and mentally u feel freshness the next day. as a whole ur body temperature will get regulate.