Co-worker of mine had a similar experience to yours, a horrible 36 hours after his second shot of Moderna and he is A neg. It makes me wonder about the studies about the different blood types and the effects of Covid-19 also relating to the vaccine.
My blood type is A- and I am 37 years old. I took the Pfizer vaccine and suffered moderate/severe side effects from the second shot. The first shot was localized pain (about 4x worse than a flu shot) with a day of fatigue, similar to the first day of having the flu before a fever breaks. The 2nd shot paralyzed half of my arm within 12 hours, muscle aches, shakes, cramps all night, and I lost a day of work. The following day I medicated through the aches to get to work, as I was told NOT to medicate the first 24 hours, and after returning home I began vomiting and was sick to my stomach the rest of the night. I didn't leave the bathroom and fell asleep in the bathtub until 2am, having thrown up and dry heaved for hours, at which point I knew I was going to miss another day of work. I continued to feel ill for another 3 days and returned to work after the weekend. It was no joke. I felt terrible although no fever ever developed.
I believe that I caught an early case of Covid in late march or early April of 2020 just as the news was breaking nationally. Working with a lot of students (half Chinese) who returned from spring break, it's no surprise. I had chest pain, difficulty breathing, and a prolonged increase in blood pressure, but no fever or anosmia. My doctor pushed me through the respiratory clinic at the time which was a makeshift plastic shelter with doctors wearing hazmat suits. There were no covid tests available so they gave me an inhaler and and antibiotic, which were of no use whatsoever. A number of doctors since then have strongly suggested that it was covid but there were no tests or antibody tests available until long after I recovered.
Except for the fear of the death the vaccine was far worse. Considering I beat it once I was not going to get the vaccine until my wife became pregnant, at which point it seemed prudent for the safety of the family. Our toddler has been exposed all year long with useless (IMO) safety protocols in place and they have never been ill. So far my wife has been doing fine as well and is now halfway through her own vaccinations. That was a much more difficult choice since they were not thoroughly tested, but I allowed her to make that decision for herself.