Andromeda, sorry to hear about your situation.
I got painful acne from taking Tramadol (muscle relaxer for my neck) earlier this year. I have luckily never had acne growing up and got pretty depressed until I put the two together.
I thought it was hormonal too, but the Tramadol made me very depressed as well so I guess in a way it was. Thankfully it cleared up but I had never had that side effect before from any med.

Could it be a medication you are taking?