These pains are looking like musculoskeletal pain
and if the pain is severe you can give ibuprofen
containing syrup in prescribe dosage after food. Is tummy pain is severe? associated with any vomitings or loose motions? is waking him up during sleep? Give nutritiuos food containing fresh fruits, fruit juices and carrots and adequate sleep are required for the dark circles
under eyes to decrease. Arm pit pain as told due to some muscular pain
nothing to worry. Position of sitting of the child is ipmortant as ipmroper sitting and resting on sofa and chair lead to musculoskeletal pains.