Hello, Don t get panicky over this.Dengue infection is very common Infection but very few people suffering from dengue get the complication.Most important and dangerous complication is dengue hemorrhagic fever. If your platelet counts are normal then there is nothing to worry.Although your fever is gone now but you should be careful now as extreme weakness at This moment would require prompt admission and treatment with intravenous fluids.For itching you can take anti allergic like CETRIZINE once daily in the night for few days. Thanks