Severe muscle pain

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So I worked nights last night at at about 3 am my legs started swelling and just feeling really heavy!!! By the time I got home I was in severe pain crying in tears couldn’t sleep my legs hurt so bad feels like I ran a marathon and lifted weights they are so sore and painful I’ve been rocking on the floor crying for hours just wanting the pain to stop I took a bath with epsom salt helped for about 20 minutes now the pain is back with vengeance! Anyone know what this is? My mom says muscle cramps but this isn’t cramps this is a deep tissue throbbing pain my inner thighs my hips my calves all just throbbing