For your fever and body aches, you can take Paracetamol (Acetaminophen) after a light snack. For the cough and cold, steam inhalation and warm saline gargles can help. Since you have vomited, hydration is crucial; sip water or Oral Rehydration Salts (ORS) slowly. Stick to bland foods like toast or rice, and avoid greasy meals. Do not take antibiotics without a prescription. If you experience persistent vomiting, cannot keep fluids down, or if your fever remains high for more than 48 hours, please consult a doctor in person for a proper evaluation.