Thank you for your query,
Crying is a common phenomenon in infants around this age due to colic
, wetting of clothes, for hungry, and for getting boredom and for picking up the child.
It is easy to find out for the reason of cry for a mother as her interaction increases with the child.
Throwing is due to gastroesophageal reflux, which is common in infants till the age of 6 months.
If weight gain is normal and urine output is adequate, nothing to worry about the reflux.
Burp your child after each feed, hold in upright position for 10 to 15 minutes after feeding.
Give small feeds more frequently.
The bumps on scalp
may be due to seborrheic dermatitis
, it is a benign condition and will subside within 6 months of age.
Hope I have answered your query.