My Typhoid Diagnosed On 22nd July 2016 And It Was

My typhoid diagnosed on 22nd july 2016 and it was at its middle stage, i started dietary precautions such as soft diet and more fluids and i also started taking antibiotic ciprofloxacin. I had 99 or 100 temperature for two days and diarrhea too. i completed my antibiotic course of 10 days and now i am ok and started taking boiled rice, chicken, potato, grounded beef cooked in no spice and olive oil. Now i am having severe headache and cold sweats. what is the reason? this is happening since yesterday.