Majorly Fatigued

Gods

For the past 4 days, every bone, joint, and muscle in my body has been hurting. I had a early but short period that was lighter than usual about a week ago (came at cycle day 24 when my cycle days are ALWAYS 30-37 days long). Took test, negative. What else could it be? I also started Metformin about 6 months ago for sugar levels..throat been hurting a tad bit also