i haven't done any exercise yet my stomach and leg muscles (back of my thighs) hurt like h**l, as if iv been working out hard, but i really haven't. it started yesterday morning when i woke up, and the day before i had planned to do some sit ups but got distracted, yet now I'm in pain and it hurts so much to move around, please help! i need to know whats caused this, iv done nothing differently than usual :( thanks in advance!
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