maybe in your place the vaccine used is called astrazeneca. indeed as far as I know many people get sick after receiving this type of vaccine. if in your place using a vaccine called sinovac, the number of sick people may be much less. but you don't have to worry too much because the pain caused by the vaccine is a mild illness and you will recover quickly.
LOL.. no one want to use Sinovac because it is completely useless. Here in India, I got vaccinated with the AstraZeneca vaccine (Covishield). After the first dose, I suffered from light fever, but there were no side effects after the second dose. And the AstraZeneca vaccine is having good efficacy (60%-80% according to various studies). On the other hand, those nations which used Sinovac are opting for 3rd booster dose with other vaccines. Because a lot of people who received two doses of Sinovac have contracted COVID 19 and died.
It is true that Sinovac is the lowest dose for the matter of side effects. Actually, all these vaccines do not mean that after the vaccine we are immune to Covid, but rather help reduce the symptoms caused by Covid so that it is not too dangerous for the body. Or it can be called a vaccine is an antibody. So even though we have been vaccinated, whatever the vaccine is, we still have to comply with health protocols.