I have Alpha minor. I had the Pfizer vaccine. After the first shot, after about 4-5 hours I developed a bad backache, just my entire back, and was groggy for the entire next day. After the 2nd shot, I felt fine until about 12 hours later. Then I got a low fever (100), chills, and body aches. I took ibuprofen and felt much better, so I thought that was it. About 6 hours after that, I got a fever again with chills and body aches, this time the fever was between 100-102, plus fatigue. This lasted for a day, then the symptoms lessened. But for a good 4-5 days, I had a fever that bounced up and down between 99-101 and flu-like symptoms (nothing respiratory) and still the fatigue. I don't know anyone else with Alpha thal who has gotten the Pfizer. My dad, who is 83 with Alpha thal, got Moderna and had no symptoms other than some soreness, maybe a little fatigue but no flu symptoms.