That is SO frustrating!!! You finally get the courage up to make that difficult call, and then you have to wait.
I too had not been to see a doctor in a LONG time and it took a lot of encouragement from my wife to make that call, but once I got in there and had an honest discussion with him in regards to my health, addiction, and overall well being I was much happier.
You got this, like you said work on some health issues in the meantime and when the time comes be confident and honest with him/her.
"...not drinking to escape; they were drinking to overcome a craving beyond their mental control." - AA, 4th Edition