Hello,
Kindly take plenty of water 3 to 4 liters of water and do practice 
meditation will keep you away from 
heat stroke related symptoms.
Follow the below diet to increase your libido.
Foods rich in protein milk and milk products,black gram potato (steamed),almond,cashew,peanut,walnut,watermelon seed,pumpkin seed will be good source of protein.
Take fruits like mango,guava,pineapple,fig,dates frequently.
Vegetables like moringa leaves,vegetable,okra,green leaves,carrot,beetroot will help.
Avoid :Stop alcohol, tobacco, drugs, 
smoking.
Avoid junks, fried foods, canned foods, processed foods, denatured foods.
Avoid white sugar, white flour.
Have a sound sleep daily and keep away from 
stress.
Hope I have answered your query. 
Let me know if I can assist you further.