It is normal. No need to worry. Just place an ice cube on swelling

The first dose is given at 12 - 15 months, second between 4 - 6 years of age.

The pneumococcal vaccine is given in the 6 weeks, 10 weeks and 14 weeks. If this is the vaccine that you are talking about, do talk with your doctor to find out what schedule your child is on and if possible that he has already taken previous doses of this vaccine.

Any brand will do. Check with your pediatrician once before purchasing it.

Yes, it is fine. You should be with the doctor that you are comfortable with. Just follow up with doctor regarding your previous vaccinations and any other admissions.

Hi you need to get it rescheduled by your paediatrician

Hi marks come slowly and will develop into scar gradually

Hello

Your baby will feel the pain of injection even in painless vaccination. Only difference between painless and painful vaccination is that in painless vaccination chances of getting fever after vaccination is low. In painful vaccination baby gets fever but this is easily controllable and not harmful.

Hi you need to get it rescheduled by your paediatrician

https://www.babygogo.in/vaccination-chart-indian-babies/
Do have a look at this article. In addition your doctor has probably given you a schedule for your baby's vaccination. You need to follow that.