Why do I seize the strain surrounded by my side?
It could and most likely nothing but when I sleep my hips(sides) become numb but at equal time it will have a unbearable backache that will wake me up and It feels resembling a really really bad bruis if I touch my hip the next light of day. Why am I getting this pain all of sudden? I other sleep on my sides but now and for a couple of months I've been have that pain... I don't really know what to think of it.
Answer: Have you be stretching your legs too straight? Have you been walking or exercising? Something that makes you consistency the pain on your hips? Maybe you're just tired and you're growing a bit more...
These might be the cause:
Eating
Exercising
Sitting
Pressure (Weight on hips)
Hope that helps... (I think) =S