Alaa jangan risau, vaksin Pfizer memang biasa je side effects nya, mostly arm soreness, a bit of fever or headache for 1-2 days je, then okay already! A few of us mums did ours around the same time, and honestly ramai yang okay je langsung, some felt a bit tired je on the second day then back to normal; paracetamol boleh minum if the fever bothers you, but book in with your doctor or nurse to keep an eye on how you're feeling, especially if anything feels off beyond the usual achiness