I would advise you to visit a MD general physician as you require a physical examination and undergo investigations such as ANA, CRP, CBC to find the underlying cause and have it treated accordingly. The given information isn't sufficient to reach a specific diagnosis, so kindly visit the MD general physician at the earliest. The weakness you feel could be due to anemia and vitamin d deficiency which caused the weakness. These following steps may help control your situation: - Avoid cold food and water, preferably have hot food and water - Don't skip meals have a liquid diet containing soups and progressively increase to solid diet as per how you can tolerate. - Have food rich in vitamin C such as oranges to help build immunity. - Drink plenty of fluids, drink 3 liters of water per day - Do salt water gargling with lukewarm water thrice a day - Do steam inhalation (plain steam) thrice a day and apply vaporub over your chest and nose - Maintain good personal hygiene - Rest plenty, body heals while at rest If the condition persists or worsens visit nearest ER at earliest

Dear patient Your given history is inconclusive so some more information related to your problem are required for better advice Please attach the reports for better analysis if any As blind treatment may not get desired results or may worsen the conditions