just the opposite

My right side is incredibly tight that from my hip to my ribcage, a bit like a really strong piece of elastic is attached to my right hip to half way up my rib cage. Also I have inly been able to sleep on my left side only for years. Anyway last  night in bed something occurred to me, that its not my right side that is causing the probllem but my left. so I put a pillow under my side opposite. Doing this created although painfull at first had a positive result. it pushed up my left side and levelled out my right. Altough at first the pillow was uncomfortable, eventually felt much easier. I already sleep with a pillow in between my legs to stop my spine and hips twisting to the right. So yet again several problems occur together causing my spine to not only twist, but to fall down to the left when laying down.