<s>[INST] Hi my name is kasmira I am 24 years old I am around 5 4 and I am 130 pounds I have really bad back pain about 4 days now which started off with a headache that is still very much there and a fever that is on and off and I have really itchy palms and feet and a slight rash is visible on my arm and legs could this be dengue [/INST] Hello Friend Kashmir, Thanks for using Chat Doctor , Fever, Headache and Low back pain including rashes leads to clinical presentation of typical Dengue Fever, I suggest you to do Dengue Serological Test to confirm clinical presentation. Do take Plenty of fluids as it is the main treatment for Dengue fever. Avoid NSAIDs without doctors information. There is nothing to worry as you will be alright, Bed rest with Plenty of fluids will make you feel good in two days. Wishing you a speedy recovery. Take care. </s>