Whether to bone scan or not

Morning all. Over the past few weeks, I have been having some numbness in my thigh when Im sleeping and it has been hanging around a bit through the day. I have always had trouble with lumbar pain but also have some upper spine discomfort.
 GP said he is unconcerned, thinks maybe an irritated nerve, howevwr has given me a referral for a bone scan for peace of mind.  We are booked to go on a little holiday with daughter and her family and just knowing this has been suggested has made her really anxious. ( I also have something going on with uterus and need yo return for extra scans the day before we go on holidays) . I just hate stressing my family any more than i need to. Just not sure whethwr to go do it before holiday and if bad news then i have wrecked everyone's holiday,or leave it and see how i am on a couplr of werks and do it when i get back. GP didnt seem concerned. Thoughts ????
PS i have also recently startwd lexapro and have seen tingling and numbness
can be a side effect of that!