Guys I was frustrated for more than 5 years with all the symptoms you guys are talking about. Doctors always diagnose it as typhoid or malaria.

Guess what after my own research (forget about the stupid doctors) I realized I had CELIAC DISEASE. It was my immune system attacking my body as a reaction to any wheat products I consume. I later found that my body is also sensitive to peanuts.
The only solution is to totally remove the culprit food from your diet. Wishing you success.