Mycoplasma pneumonia is walking pneumonia. You are likely to have high temperature, soreness in throat and chills. But the signs are not very irritating or disturbing. Dehydration is also sometimes visible

The signs of pneumonia is seen across the respiratory system. You might undergo a high fever, tiredness, coughing, soreness in throat, sneezing and chest pain. Pleurisy can also be seen. You might also have dehydration in any form

Generally the ailment becomes visible in 1-3 days after infection. But this might depend on the immunity that you have. The variant of infection is also a determinant factor for this