what your baby has is called a cradle cap, and yes it is normal.
Cradle Cap
Looks like: Waxy pink or orange scales on the scalp. They can be mild or can grow so thick it looks like your baby's wearing a cap. Cradle cap generally shows up in the first month or two but can pop up anytime within your baby's first two years.
What's going on: This is a form of seborrheic dermatitis, which is also responsible for dandruff in adolescents and adults. "The most common cause is a yeast that grows on everybody's skin but prefers to live in greasy areas like the scalp," says Dr. Siegfried. Babies are prone to cradle cap because Mom's hormones that are still circulating through their body send oil-producing glands into overdrive.
How to help: For mild cases, just use a gentle shampoo to wash your baby's hair. You can also try massaging mineral or olive oil into the scalp and then washing it out. It's okay to next use a soft-bristled brush or your fingertips to brush out flakes, but be gentle. "The more trauma you inflict to the skin, the more likely the scales are to reappear," cautions Dr. Siegfried. For a severe case of cradle cap, your pediatrician may recommend that you use a medicated anti-dandruff shampoo.
Cradle cap may look kind of funny, but it's not dangerous. "Transient things like little red spots, bumps and scaly areas probably happen on other organs too -- who knows? But we don't have fancy names for them because we can't see them," says Dr. Siegfried. "If your child is growing and seems comfortable and happy, you don't have to worry so much.

Please see your paediatrician immediately.
Treat as Urgent.

If it is mucus.... Whitish... Just clean with cotton wool dipped in clean bottle or Saline water. If it persists kindly see a doctor for proper treatment

You have to keep the baby in an upright position for 30mins or more after feeding to prevent the food coming back up.

A soft clean washcloth or cotton wool damped in clean water will be fine for cleaning your baby's mouth.
You can then transit to an age appropriate toothpaste when the baby's first tooth erupts.

Once the cord has fallen, just clean with mentholated spirit if still raw or yet to heal completely or become like normal skin.....No need for any special care once it has healed fully and become like normal skin .

Is your baby on exclusive breastfeeding?

Pediatricians recommends back to sleep as the best sleeping position for infants. That’s laying your infants down on their back. This is to avoid the child dying via Sudden Infant Death Syndrome (SID)

Hiccups in
newborns are due to the diaphragm
stretching. It will resolve on its own. There's
no need to worry.

You should calm down. Their is a
period when baby just want to suck
not because of hunger but just to be
close to you. Just keep at it. Ensure
your baby latches well when
breastfeeding

The child is sick and possibly the cough is severe. Kindly take him to see a doctor who will examine him properly, make accurate diagnosis of the causes of cough and vomiting and treat appropriately.

Treatment of rashes depends on the type of rash on the child after a physical examination is carried out. Kindly see a Paediatric dermatologist for examination

Apply shea butter and coconut oil. It should help