changes in x-ray

I've been having bone pain in my left hip, ever since I started taking tamoxifen in October.   Mostly at night, but also sometimes during the day.  I mentioned it to my onc and he says bone pain is not a se of tamoxifen.  I did have a clean bone scan before I started taking tamoxifen.

So, I when I say my orthopedic surgeon for the one year-check of my replaced right hip, they also x-rayed my left hip.  There was what looked to me like a whiter, denser patch on the neck of my femur.  The ortho said oh that is hetertopic ossification, sometimes it just develops for  no reason, and to take a non-steroidal anti-inflammatory med of some my preference.  No worries - it couldn't be a bone met & anyway, bc causes osteolytic bone mets, while prostrate cancer causes osteoblastic bone mets.

The thing is I am still worried because:

1)  When I google hetertopic ossification, the results indicate it is caused by surgery or injury.  I have not injured my left hip.

2)  I know that bc can cause osteoblastic bone met, not common, but it does happen.  When I look at the ACS's material on metastatic bone mets, it said that osteoblastic tumors can show up on x-rays as a whiter area.  The material also said that bone mets can cause the sort of pain I have been having, off and on and hurting more at night.

I saw my onc the day before I saw my orthopedic surgeon, for a 3 month visit.   He said all looked good and I should see him in another 3 months.  So now  I can't decide if I should call him about the changes in my x-ray or just wait until I see him in July.   It felt so good not to have a doctors appointment on the near horizon, but I am not satisfied with my orthopedic surgeons explanation.    

 Argh...Any advice?  

I really wish my onc used e-mail.  I sort feel like my explanation of why I am worried is too long for a phone call, but don't want to schedule an office visit. I also feel a bit silly, like I am making too much of this.

Deb,  the term Dr. Google makes me LOL!  I aprreciate the advice.

I saw my gyn this morning for a routine visit and told her my tale of woe.  She sent me for another hip x-ray, to be read by a radiologist, not my orthopedic surgeon.  According to my gyn, I can have a biospy done locally, if needed.  So we shall see... 

I finally got my hands on the radiology report after a week.   No evidence of any changes in the bones or surrounding tissue!  So I am relieved and will go back to assuming it is the tamoxifen that is making my hip hurt.  But If it keeps on hurting, I'll push for another bone scan or an mri.