I am male over 50 with heart, kidney, arthritic, & allergic conditions as well as overweight & no excercise. I had my 1st Shingles vaccination last 3/5/21 and I suffered awful flu-like symptoms for 2.5 days! I treated that with 3 doses of acetaminophen PM, hydration & plenty of bed rest. I then had my 1st Pfizer anti covid-19 vaccination on 4/10/21 and just had muscle ache around the injection site which i treated with an ice pack and a single dose of acetaminophen. The aching lasted almost two days. I had my 2nd Pfizer dose on 5/1/21 but only had very, very slight muscle soreness around the injection site & mostly forgot about it. I felt no change in my health since then.