Welcome to the forum. So, looking at your last PET scan, does it mention anything about bone SUV (standardized uptake value)? Usually a number is given to show how much glucose is taken up in a particular area. The radioactive glucose is attracted to cancer, therefore, the higher the SUV number usually indicates more cancer in that particular area.
It seems like such a short period of time from when you had your PET scan to having such harsh bone pain symptoms after consuming alcohol, but it probably wouldn't be a bad idea to mention it to your doctor. I've heard of some people with Hodgkins having jaw pain when consuming alcohol, but I have never heard of pain elsewhere in the body. I have never heard of avascular necrosis, is this something you've been diagnosed with previously?