I need some help guys. My mum got the first dose of Pfizer the Wednesday before last (11 days ago). Since the next day until this current moment, she’s been feeling like complete shit with a high fever, extreme fatigue, occasional chills, and now a cough. She has no underlying health conditions and is in her early 60’s. We got her tested for Covid just in case a couple of days ago and it came back negative. Why is this going on for 11 days now? What could it be? If it isn’t Covid and I haven’t heard of anyone having a reaction for this long after the jab. We’ve been to the doc twice, they did some checks on her (oxygen, etc) and said everything was fine, and that she should wait a bit and come back if it persists. She’s going into her 2nd week of this now and I’m worried that it might not be the type of thing where you should just tough it out, and I don’t want things to deteriorate. Any ideas would be much appreciated.