Muscle Ache / Weakness in arms and legs after 2nd vaccine

I am early 40’s female and previously very fit and healthy. Would cycle long distance, play tennis for hours, hike, paddleboard, windsurf etc.. Since the 2nd vaccine my muscles have been aching terribly, for about 7 weeks now and getting worse, and I am incredibly weak. A short walk or climb of stairs is hard work, I can’t life a saucepan one handed. Mainly in arms and legs, but down to fingers and toes as well. Constant aches, throb, or numbness and sometimes shooting pain. Doctor has sent me for blood tests. I’m worried as I don’t want to have a booster in 6 months, but I am a teacher and can’t afford to lose my job.

Is This NZ Based or Overseas? : New Zealand