26, need to lose 40lbs, struggling with Fibromyalgia

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I am a SAHM with 3 little boys (ages 4 and under). I have never joined an online community/ forum/ chat group before, but I am trying to find people with an understanding of FMS and the challenges it brings to a fitness plan. I hope to find a group that is upbeat, motivational, and has good tips on types of exercise / eating plans that work well for someone with unpredictable health. Thanks!