It is normal to feel run down for months after dengue, and this is what is usually meant by Post Dengue Syndrome. However sounds like your situation involves more than that.
The onset and/or flare-ups of Fibromylagia is often preceded by a viral infection. Many different viral infection have been so linked and, as the mechanism is probably related to the immune response, the specific virus is not that significant. No reason to think Fibromyalgia onset after Dengue is any different than after Epstein-Barr etc.
Dysphagia is a symptom, not a disease. What is the cause of your dysphagia?
I have never heard of any linkage between pulmonary fibrosis and dengue.
That is an odd assortment of diagnoses you seem to have (Fibromylagia, pulmonary fibrosis etc). Where, by whom and how where these diagnoses made? Especially the pulmonary fibrosis? Are you a smoker? How old are you?