Since you still have fever and body pain after 3 days, a Dengue test is recommended, especially during dengue season. Don't change medicines on your own. Wait for the test result and follow your doctor's guidance for further treatment.

Lanol ER and Calpol 650 are generally safe if taken once, but if Lanol ER also contains paracetamol, you may have taken a double dose. Occasional extra paracetamol rarely causes harm, but watch for nausea, stomach pain, or fatigue. If you feel unwell or took more than the recommended dose, consult a doctor.

Lumet is a correct malaria medicine, but Clavam, Lanol, and Topcid are not standard malaria treatments. They may be added only if there are other issues like infection, acidity, or pain. It's best to confirm with the doctor why each medicine was prescribed.