Hi, I have OA in many joints. Recently diagnosed in neck and spine. I had my first Covid jab yesterday and was impressed with efficiency of the system. Feeling fine afterwards I went straight back to my car but had to sit down due to lightheadedness - nothing serious but taken back inside and monitored. All was well for the rest of the day but had a bad night with great discomfort in upper back and neck - has anyone reported a flare up of OA after the jab or was this unrelated?