Post Lymphadenectomy and lumpectomy pain soreness and headache

I am 6 weeks post surgery for hormone receptive breast cancer . 
Both my surgery scars site are doing well but I am having a persistent headache , neck pain this week and have sore spots in odd places around my body e.g inner thigh next to knee , right side of one foot ,  inner elbows and mid right side of chest . I’m not sure whether to go to my gp or ring the cancer nurses in my hospital as I have been handed over to radiology and will see them end of Jan.