Pain in hip/ bum/ groin

What will become apparent from my posts is that I am so anxious. Don't think I have reall come to terms with this yet, even although my diagnosis was 6 months ago. Still in floods of tears even although my 5 cycle of chemo is on Wed.  So, latest is I have achey pain in my bum, hip, groin which radiates up my side and down my leg. I had a bone scan in early Feb when first diagnosed, which was clear. I also had a scan on my ovaries, which showed a benign looking cysts. I am due to get that checked again at start of august. I had a similat pain before in about april time but it went away and I forgot about it, until last week. I have been sore since. I mentioned it to onc last week but they said they didn't think it would be anything. I have been in bed loads- sleep all the time, so I am wodering of lying and sitting about all the time could cause this. What do you guys think. THanks for your help. I am grade 2 btw