I Did Squats About 5 Days Ago - And Then

I did squats about 5 days ago - and then developed a burning sensation in my lower buttocks and upper thigh - it burns and feels like there is bruising on the outer leg - but there is no sign of bruising - it just feels like that. I'm miserable - cannot sleep - put cold on it - and it helps - but nervous - and want to do what is best for it? Please help~