Ouch!

For the past few days I've been having increasingly bad muscular pain in my back, shoulders, down my arms and even my knees! I'm walking around like an old woman and am really struggling to lift Jamie. This morning I really struggled to get out of bed and walk. I have a feeling it might be some kind of repetitive strain thing from holding him for ages while he breastfeeds. Not sure why it would affect my knees though unless I'm tensing them and holding them in the same position for ages...