One of the things I am finding hard about the fusion recovery process is knowing what is normal and what isn't. I am week 4 from a PLIF and thought things were going ok. Over the last week or so though it seems that when I have been sitting for too long, or may have curled over a little bit more than I should in my sleep that my spine at the surgery site seems to bulge out for a while and only go back to relatively straight and flat after I have been standing for a few minutes. I am 300kms from my surgeon and my local doctor believes its probably just muscle spasm, although to me it feels like none & metal.. Is this normal? It's very painful. Any similar experiences anyone?