Just back from Punta Cana 2 days ago and I started feeling sick the last 2 days while I was there. Since, it isn't constant but it persists, especially in the evenings: body ach, kidneys don't feel good, cramps, sweating, diarrhea, feeling that I want to vomit, no energy. I'm not used to that at all. I'm afraid I might have malaria even though I never left the resort. I have a prescription in my hands: novo chloroquine, I know I should have started to take it prior to departure but I elected not too ... So would it be smart to start using it as of now?