Like heck they do! The immediate disease might be over in a week, but the side effects, or whatever you want to call it, can continue for six months to a year or more. After one month, the skin on my hands and feet peeled off. My hair began falling out about three months after developing dengue. Then, dengue depression set in at about six months and the cloud did not lift for another twelve months. Dengue is a disease from hell and just keeps on giving and giving and giving.
Good God. I hope you are well now. That is horrifying!