Well, i went yesterday evening, and i got the Astra Zeneca vaccine. And knew that i would feel sick from it. The health professional's do warn you of side effect's, and adverse reaction's. My arm where the needle went, in is a little sore, . As well i have dizziness, light headedness, and some chill's, as well as my energy is not as good. So i will be taking more Tylenol, as well as not rushing around like i do. And will pace myself ,more, for my body and brain, to get more used to the vaccine, in my body!