Breast lump with dull arm ache... is this normal?

Hi everyone, 

This forum has been really helpful to me from finding a lump to having my appointment and needle biopsy. My question that i have that I can’t seem to find an answer to is, has anyone else experienced a horrible dull ache in the arm that is the same side as the lump? This has been happening more over the last two weeks and I also get the same dull ache in my lower leg on the same side. Also (probably has nothing to do with it) but a weak feeling and heavy feeling at the back/base of my head. I’m trying not to look too much into it but as its all the same side as the lump, I’m starting to panic. They said biopsy results should be 2-3 weeks. Will I find out sooner if it’s not good news? I’m 37 with 3 children and am finding it hard to act normal and not show I’m panicked about something x