Leg pain in the morning? numbness too..?

Question:

i keep waking up in the middle of the night with the feeling my leg has been twisted (it hurts at the back just under the joint), it is the muscle or atleast something in there, its that painful that it makes me roll around in bed in pain and biting a pillow whilst going "owww"

i have done this a few times now in the last 2 months and im not sure if its bad sleep or moving too much in my sleep. i have woken up with dead leg sometimes or numbness there, sometimes it is the same for my arms.. i cant walk on my left leg atm.

im not sure what im doing to cause this :S it is happening abit and other parts of body are half numb too sometimes. maybe not much blood is getting to these parts of the body?

Answers:
in the question nothing has been mentioned about history.it is the compression of a nerve while sleeping at night. so posture can help. an mri can investigate it fully.

Leg pain in the morning? numbness too..?

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