I've was diagnosed with ET jak2 neg in 2008. Recently I have started to get a deep ache/pain in my right leg, it doesn't feel muscular, but more like bone pain. It is from the hip to the knee bone. It doesn't feel like joint pain. It's constantly there, sitting, laying and walking. I haven't been to my GP yet. As usual my mind is being overactive and I'm thinking "is it my bone marrow", shall I wait until my next haematology appointment ? Has anyone else experienced this?